Introduce seperate LDFLAGS for executable and shared library build targets (original) (raw)
In the Makefile, PY_CORE_LDFLAGS is used to build both the interpreter as well as shared libraries.
This makes it tricky to integrate it with build systems like Bazel (using rules_foreign_cc as a wrapper) which has a clear distinction between executable and shared libraries specific linker flags.
For example, the gcc -pie flag is only applicable for executables, and not shared libraries. In MacOS, the clang -dynamiclib flag only applies to shared libraries (and currently the shared lib in macOS is a seperate build target).
Edit: Updated with an experimental patch
A small snippet which I’ve been experimenting with is to split out PY_CORE_LDFLAGS which serves two purpose as mentioned above into PY_CORE_LDFLAGS (which with the following diff is used to build shared targets, and PY_CORE_EXE_LDFLAGS which is used to build the executable targets only:
diff --git a/Makefile.pre.in b/Makefile.pre.in
index a276d535c7f..e3847eb5d31 100644
---
Makefile.pre.in | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git Python-3.9.20.bak/Makefile.pre.in Python-3.9.20/Makefile.pre.in
index a276d53..e3847eb 100644
--- Python-3.9.20.bak/Makefile.pre.in
+++ Python-3.9.20/Makefile.pre.in
@@ -115,6 +115,7 @@ PY_STDMODULE_CFLAGS= <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>P</mi><msub><mi>Y</mi><mi>C</mi></msub><mi>F</mi><mi>L</mi><mi>A</mi><mi>G</mi><mi>S</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(PY_CFLAGS) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal" style="margin-right:0.13889em;">P</span><span class="mord"><span class="mord mathnormal" style="margin-right:0.22222em;">Y</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.3283em;"><span style="top:-2.55em;margin-left:-0.2222em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight" style="margin-right:0.07153em;">C</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord mathnormal" style="margin-right:0.13889em;">F</span><span class="mord mathnormal">L</span><span class="mord mathnormal">A</span><span class="mord mathnormal" style="margin-right:0.05764em;">GS</span><span class="mclose">)</span></span></span></span>(PY_CFLAGS_NODIST) <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>P</mi><msub><mi>Y</mi><mi>C</mi></msub><mi>P</mi><mi>P</mi><mi>F</mi><mi>L</mi><mi>A</mi><mi>G</mi><mi>S</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(PY_CPPFLAGS) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal" style="margin-right:0.13889em;">P</span><span class="mord"><span class="mord mathnormal" style="margin-right:0.22222em;">Y</span><span class="msupsub"><span class="vlist-t vlist-t2"><span class="vlist-r"><span class="vlist" style="height:0.3283em;"><span style="top:-2.55em;margin-left:-0.2222em;margin-right:0.05em;"><span class="pstrut" style="height:2.7em;"></span><span class="sizing reset-size6 size3 mtight"><span class="mord mathnormal mtight" style="margin-right:0.07153em;">C</span></span></span></span><span class="vlist-s"></span></span><span class="vlist-r"><span class="vlist" style="height:0.15em;"><span></span></span></span></span></span></span><span class="mord mathnormal" style="margin-right:0.13889em;">PPF</span><span class="mord mathnormal">L</span><span class="mord mathnormal">A</span><span class="mord mathnormal" style="margin-right:0.05764em;">GS</span><span class="mclose">)</span></span></span></span>(CFLAGSFOR
PY_BUILTIN_MODULE_CFLAGS= $(PY_STDMODULE_CFLAGS) -DPy_BUILD_CORE_BUILTIN
PY_CORE_CFLAGS= $(PY_STDMODULE_CFLAGS) -DPy_BUILD_CORE
# Linker flags used for building the interpreter object files
+PY_CORE_EXE_LDFLAGS=@PY_CORE_EXE_LDFLAGS@ $(PY_LDFLAGS_NODIST)
PY_CORE_LDFLAGS=$(PY_LDFLAGS) $(PY_LDFLAGS_NODIST)
# Strict or non-strict aliasing flags used to compile dtoa.c, see above
CFLAGS_ALIASING=@CFLAGS_ALIASING@
@@ -589,7 +590,7 @@ clinic: check-clean-src $(srcdir)/Modules/_blake2/blake2s_impl.c
# Build the interpreter
<span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>B</mi><mi>U</mi><mi>I</mi><mi>L</mi><mi>D</mi><mi>P</mi><mi>Y</mi><mi>T</mi><mi>H</mi><mi>O</mi><mi>N</mi><mo stretchy="false">)</mo><mo>:</mo><mi>P</mi><mi>r</mi><mi>o</mi><mi>g</mi><mi>r</mi><mi>a</mi><mi>m</mi><mi>s</mi><mi mathvariant="normal">/</mi><mi>p</mi><mi>y</mi><mi>t</mi><mi>h</mi><mi>o</mi><mi>n</mi><mi mathvariant="normal">.</mi><mi>o</mi></mrow><annotation encoding="application/x-tex">(BUILDPYTHON): Programs/python.o </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal" style="margin-right:0.05017em;">B</span><span class="mord mathnormal" style="margin-right:0.10903em;">U</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mord mathnormal" style="margin-right:0.13889em;">P</span><span class="mord mathnormal" style="margin-right:0.22222em;">Y</span><span class="mord mathnormal" style="margin-right:0.13889em;">T</span><span class="mord mathnormal" style="margin-right:0.08125em;">H</span><span class="mord mathnormal" style="margin-right:0.10903em;">ON</span><span class="mclose">)</span><span class="mspace" style="margin-right:0.2778em;"></span><span class="mrel">:</span><span class="mspace" style="margin-right:0.2778em;"></span></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal" style="margin-right:0.13889em;">P</span><span class="mord mathnormal">ro</span><span class="mord mathnormal" style="margin-right:0.03588em;">g</span><span class="mord mathnormal" style="margin-right:0.02778em;">r</span><span class="mord mathnormal">am</span><span class="mord mathnormal">s</span><span class="mord">/</span><span class="mord mathnormal">p</span><span class="mord mathnormal" style="margin-right:0.03588em;">y</span><span class="mord mathnormal">t</span><span class="mord mathnormal">h</span><span class="mord mathnormal">o</span><span class="mord mathnormal">n</span><span class="mord">.</span><span class="mord mathnormal">o</span></span></span></span>(LIBRARY) <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>L</mi><mi>D</mi><mi>L</mi><mi>I</mi><mi>B</mi><mi>R</mi><mi>A</mi><mi>R</mi><mi>Y</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(LDLIBRARY) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.00773em;">BR</span><span class="mord mathnormal">A</span><span class="mord mathnormal" style="margin-right:0.00773em;">R</span><span class="mord mathnormal" style="margin-right:0.22222em;">Y</span><span class="mclose">)</span></span></span></span>(PY3LIBRARY) $(EXPORTSYMS)
- <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>L</mi><mi>I</mi><mi>N</mi><mi>K</mi><mi>C</mi><mi>C</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(LINKCC) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.10903em;">N</span><span class="mord mathnormal" style="margin-right:0.07153em;">K</span><span class="mord mathnormal" style="margin-right:0.07153em;">CC</span><span class="mclose">)</span></span></span></span>(PY_CORE_LDFLAGS) <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>L</mi><mi>I</mi><mi>N</mi><mi>K</mi><mi>F</mi><mi>O</mi><mi>R</mi><mi>S</mi><mi>H</mi><mi>A</mi><mi>R</mi><mi>E</mi><mi>D</mi><mo stretchy="false">)</mo><mo>−</mo><mi>o</mi></mrow><annotation encoding="application/x-tex">(LINKFORSHARED) -o </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.10903em;">N</span><span class="mord mathnormal" style="margin-right:0.07153em;">K</span><span class="mord mathnormal" style="margin-right:0.05764em;">FORS</span><span class="mord mathnormal" style="margin-right:0.08125em;">H</span><span class="mord mathnormal">A</span><span class="mord mathnormal" style="margin-right:0.05764em;">RE</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mclose">)</span><span class="mspace" style="margin-right:0.2222em;"></span><span class="mbin">−</span><span class="mspace" style="margin-right:0.2222em;"></span></span><span class="base"><span class="strut" style="height:0.4306em;"></span><span class="mord mathnormal">o</span></span></span></span>@ Programs/python.o <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>B</mi><mi>L</mi><mi>D</mi><mi>L</mi><mi>I</mi><mi>B</mi><mi>R</mi><mi>A</mi><mi>R</mi><mi>Y</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(BLDLIBRARY) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal" style="margin-right:0.05017em;">B</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.00773em;">BR</span><span class="mord mathnormal">A</span><span class="mord mathnormal" style="margin-right:0.00773em;">R</span><span class="mord mathnormal" style="margin-right:0.22222em;">Y</span><span class="mclose">)</span></span></span></span>(LIBS) <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>M</mi><mi>O</mi><mi>D</mi><mi>L</mi><mi>I</mi><mi>B</mi><mi>S</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(MODLIBS) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal" style="margin-right:0.02778em;">MO</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.05764em;">BS</span><span class="mclose">)</span></span></span></span>(SYSLIBS)
+ <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>L</mi><mi>I</mi><mi>N</mi><mi>K</mi><mi>C</mi><mi>C</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(LINKCC) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.10903em;">N</span><span class="mord mathnormal" style="margin-right:0.07153em;">K</span><span class="mord mathnormal" style="margin-right:0.07153em;">CC</span><span class="mclose">)</span></span></span></span>(PY_CORE_EXE_LDFLAGS) <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>L</mi><mi>I</mi><mi>N</mi><mi>K</mi><mi>F</mi><mi>O</mi><mi>R</mi><mi>S</mi><mi>H</mi><mi>A</mi><mi>R</mi><mi>E</mi><mi>D</mi><mo stretchy="false">)</mo><mo>−</mo><mi>o</mi></mrow><annotation encoding="application/x-tex">(LINKFORSHARED) -o </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.10903em;">N</span><span class="mord mathnormal" style="margin-right:0.07153em;">K</span><span class="mord mathnormal" style="margin-right:0.05764em;">FORS</span><span class="mord mathnormal" style="margin-right:0.08125em;">H</span><span class="mord mathnormal">A</span><span class="mord mathnormal" style="margin-right:0.05764em;">RE</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mclose">)</span><span class="mspace" style="margin-right:0.2222em;"></span><span class="mbin">−</span><span class="mspace" style="margin-right:0.2222em;"></span></span><span class="base"><span class="strut" style="height:0.4306em;"></span><span class="mord mathnormal">o</span></span></span></span>@ Programs/python.o <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>B</mi><mi>L</mi><mi>D</mi><mi>L</mi><mi>I</mi><mi>B</mi><mi>R</mi><mi>A</mi><mi>R</mi><mi>Y</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(BLDLIBRARY) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal" style="margin-right:0.05017em;">B</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.00773em;">BR</span><span class="mord mathnormal">A</span><span class="mord mathnormal" style="margin-right:0.00773em;">R</span><span class="mord mathnormal" style="margin-right:0.22222em;">Y</span><span class="mclose">)</span></span></span></span>(LIBS) <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>M</mi><mi>O</mi><mi>D</mi><mi>L</mi><mi>I</mi><mi>B</mi><mi>S</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(MODLIBS) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal" style="margin-right:0.02778em;">MO</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.05764em;">BS</span><span class="mclose">)</span></span></span></span>(SYSLIBS)
platform: $(BUILDPYTHON) pybuilddir.txt
<span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>R</mi><mi>U</mi><mi>N</mi><mi>S</mi><mi>H</mi><mi>A</mi><mi>R</mi><mi>E</mi><mi>D</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(RUNSHARED) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal" style="margin-right:0.00773em;">R</span><span class="mord mathnormal" style="margin-right:0.10903em;">U</span><span class="mord mathnormal" style="margin-right:0.05764em;">NS</span><span class="mord mathnormal" style="margin-right:0.08125em;">H</span><span class="mord mathnormal">A</span><span class="mord mathnormal" style="margin-right:0.05764em;">RE</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mclose">)</span></span></span></span>(PYTHON_FOR_BUILD) -c 'import sys ; from sysconfig import get_platform ; print("%s-%d.%d" % (get_platform(), *sys.version_info[:2]))' >platform
@@ -724,7 +725,7 @@ Makefile Modules/config.c: Makefile.pre \
Programs/_testembed: Programs/_testembed.o <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>L</mi><mi>I</mi><mi>B</mi><mi>R</mi><mi>A</mi><mi>R</mi><mi>Y</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(LIBRARY) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.00773em;">BR</span><span class="mord mathnormal">A</span><span class="mord mathnormal" style="margin-right:0.00773em;">R</span><span class="mord mathnormal" style="margin-right:0.22222em;">Y</span><span class="mclose">)</span></span></span></span>(LDLIBRARY) <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>P</mi><mi>Y</mi><mn>3</mn><mi>L</mi><mi>I</mi><mi>B</mi><mi>R</mi><mi>A</mi><mi>R</mi><mi>Y</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(PY3LIBRARY) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal" style="margin-right:0.13889em;">P</span><span class="mord mathnormal" style="margin-right:0.22222em;">Y</span><span class="mord">3</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.00773em;">BR</span><span class="mord mathnormal">A</span><span class="mord mathnormal" style="margin-right:0.00773em;">R</span><span class="mord mathnormal" style="margin-right:0.22222em;">Y</span><span class="mclose">)</span></span></span></span>(EXPORTSYMS)
- <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>L</mi><mi>I</mi><mi>N</mi><mi>K</mi><mi>C</mi><mi>C</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(LINKCC) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.10903em;">N</span><span class="mord mathnormal" style="margin-right:0.07153em;">K</span><span class="mord mathnormal" style="margin-right:0.07153em;">CC</span><span class="mclose">)</span></span></span></span>(PY_CORE_LDFLAGS) <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>L</mi><mi>I</mi><mi>N</mi><mi>K</mi><mi>F</mi><mi>O</mi><mi>R</mi><mi>S</mi><mi>H</mi><mi>A</mi><mi>R</mi><mi>E</mi><mi>D</mi><mo stretchy="false">)</mo><mo>−</mo><mi>o</mi></mrow><annotation encoding="application/x-tex">(LINKFORSHARED) -o </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.10903em;">N</span><span class="mord mathnormal" style="margin-right:0.07153em;">K</span><span class="mord mathnormal" style="margin-right:0.05764em;">FORS</span><span class="mord mathnormal" style="margin-right:0.08125em;">H</span><span class="mord mathnormal">A</span><span class="mord mathnormal" style="margin-right:0.05764em;">RE</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mclose">)</span><span class="mspace" style="margin-right:0.2222em;"></span><span class="mbin">−</span><span class="mspace" style="margin-right:0.2222em;"></span></span><span class="base"><span class="strut" style="height:0.4306em;"></span><span class="mord mathnormal">o</span></span></span></span>@ Programs/_testembed.o <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>B</mi><mi>L</mi><mi>D</mi><mi>L</mi><mi>I</mi><mi>B</mi><mi>R</mi><mi>A</mi><mi>R</mi><mi>Y</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(BLDLIBRARY) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal" style="margin-right:0.05017em;">B</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.00773em;">BR</span><span class="mord mathnormal">A</span><span class="mord mathnormal" style="margin-right:0.00773em;">R</span><span class="mord mathnormal" style="margin-right:0.22222em;">Y</span><span class="mclose">)</span></span></span></span>(LIBS) <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>M</mi><mi>O</mi><mi>D</mi><mi>L</mi><mi>I</mi><mi>B</mi><mi>S</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(MODLIBS) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal" style="margin-right:0.02778em;">MO</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.05764em;">BS</span><span class="mclose">)</span></span></span></span>(SYSLIBS)
+ <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>L</mi><mi>I</mi><mi>N</mi><mi>K</mi><mi>C</mi><mi>C</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(LINKCC) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.10903em;">N</span><span class="mord mathnormal" style="margin-right:0.07153em;">K</span><span class="mord mathnormal" style="margin-right:0.07153em;">CC</span><span class="mclose">)</span></span></span></span>(PY_CORE_EXE_LDFLAGS) <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>L</mi><mi>I</mi><mi>N</mi><mi>K</mi><mi>F</mi><mi>O</mi><mi>R</mi><mi>S</mi><mi>H</mi><mi>A</mi><mi>R</mi><mi>E</mi><mi>D</mi><mo stretchy="false">)</mo><mo>−</mo><mi>o</mi></mrow><annotation encoding="application/x-tex">(LINKFORSHARED) -o </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.10903em;">N</span><span class="mord mathnormal" style="margin-right:0.07153em;">K</span><span class="mord mathnormal" style="margin-right:0.05764em;">FORS</span><span class="mord mathnormal" style="margin-right:0.08125em;">H</span><span class="mord mathnormal">A</span><span class="mord mathnormal" style="margin-right:0.05764em;">RE</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mclose">)</span><span class="mspace" style="margin-right:0.2222em;"></span><span class="mbin">−</span><span class="mspace" style="margin-right:0.2222em;"></span></span><span class="base"><span class="strut" style="height:0.4306em;"></span><span class="mord mathnormal">o</span></span></span></span>@ Programs/_testembed.o <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>B</mi><mi>L</mi><mi>D</mi><mi>L</mi><mi>I</mi><mi>B</mi><mi>R</mi><mi>A</mi><mi>R</mi><mi>Y</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(BLDLIBRARY) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal" style="margin-right:0.05017em;">B</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.00773em;">BR</span><span class="mord mathnormal">A</span><span class="mord mathnormal" style="margin-right:0.00773em;">R</span><span class="mord mathnormal" style="margin-right:0.22222em;">Y</span><span class="mclose">)</span></span></span></span>(LIBS) <span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mo stretchy="false">(</mo><mi>M</mi><mi>O</mi><mi>D</mi><mi>L</mi><mi>I</mi><mi>B</mi><mi>S</mi><mo stretchy="false">)</mo></mrow><annotation encoding="application/x-tex">(MODLIBS) </annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mopen">(</span><span class="mord mathnormal" style="margin-right:0.02778em;">MO</span><span class="mord mathnormal" style="margin-right:0.02778em;">D</span><span class="mord mathnormal">L</span><span class="mord mathnormal" style="margin-right:0.07847em;">I</span><span class="mord mathnormal" style="margin-right:0.05764em;">BS</span><span class="mclose">)</span></span></span></span>(SYSLIBS)
############################################################################
# Importlib
--
2.34.1
This is with consideration that all ld flags inherit from CONFIGURE_LDFLAGS with a majority being shared targets. I understand that there’s a lot of history and usage for these flags especially with how they’re used to build python packages, and I’m keen for any inputs and feedback!
Thank you so much for your time!
vstinner (Victor Stinner) June 10, 2025, 11:55am 2
Can you propose a new variable name for shared library flags?
malemburg (Marc-André Lemburg) June 10, 2025, 12:29pm 3
Given that we have LDSHARED for shared libs, how about PY_CORE_LDSHARED.
ruecteh (Rue C Teh) June 10, 2025, 12:37pm 4
Apologies about this! I’ve updated the description with an experimental patch that I’ve been working on (which has taken a slightly different route)!
vstinner (Victor Stinner) June 10, 2025, 1:46pm 5
Your patch makes sense. You can propose a pull request. Don’t forget to update 3. Configure Python — Python 3.15.0a0 documentation documentation.
ruecteh (Rue C Teh) June 16, 2025, 3:47am 6
Sounds great, thank you (as well as Marc) for taking out the time to look through it!