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https://github.com/python/cpython.git
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Issue #9189: Allow users to set $CFLAGS, $CPPFLAGS, and $LDFLAGS when running
configure to append to Python's default values for those variables, and similarly allow users to set $XXFLAGS on the make command line to append to the values set by configure. In the makefile, this renames the variables that used to be $XXFLAGS to $PY_XXFLAGS, and renames the old $PY_CFLAGS to $PY_CORE_CFLAGS. To compensate, sysconfig now aliases $XXFLAGS=$PY_XXFLAGS so that scripts using it keep working. I see that as the right interface, not a backward-compatibility hack, since these are logically the $XXFLAGS variables; we just use a different name in the makefile to deal with make's semantics.
This commit is contained in:
Jeffrey Yasskin
parent
74e4561a3c
commit
d4fcdb1ea8
@ -259,6 +259,11 @@ def _parse_makefile(filename, vars=None):
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# bogus variable reference; just drop it since we can't deal
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variables.remove(name)
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# Add in CFLAGS, LDFLAGS, and CPPFLAGS, which are named with a
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# prefix in the Makefile.
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for var in ('CFLAGS', 'LDFLAGS', 'CPPFLAGS'):
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done[var] = done['PY_' + var]
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# save the results in the global dictionary
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vars.update(done)
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return vars
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@ -59,12 +59,18 @@ MAKESETUP= $(srcdir)/Modules/makesetup
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# Compiler options
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OPT= @OPT@
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BASECFLAGS= @BASECFLAGS@
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CFLAGS= $(BASECFLAGS) @CFLAGS@ $(OPT) $(EXTRA_CFLAGS)
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CONFIGURE_CFLAGS= @CFLAGS@
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CONFIGURE_CPPFLAGS= @CPPFLAGS@
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CONFIGURE_LDFLAGS= @LDFLAGS@
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# Avoid assigning CFLAGS, LDFLAGS, etc. so users can use them on the
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# command line to append to these values without stomping the pre-set
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# values.
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PY_CFLAGS= $(BASECFLAGS) $(OPT) $(CONFIGURE_CFLAGS) $(CFLAGS) $(EXTRA_CFLAGS)
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# Both CPPFLAGS and LDFLAGS need to contain the shell's value for setup.py to
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# be able to build extension modules using the directories specified in the
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# environment variables
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CPPFLAGS= -I. -IInclude -I$(srcdir)/Include @CPPFLAGS@
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LDFLAGS= @LDFLAGS@
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PY_CPPFLAGS= -I. -IInclude -I$(srcdir)/Include $(CONFIGURE_CPPFLAGS) $(CPPFLAGS)
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PY_LDFLAGS= $(CONFIGURE_LDFLAGS) $(LDFLAGS)
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LDLAST= @LDLAST@
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SGI_ABI= @SGI_ABI@
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CCSHARED= @CCSHARED@
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@ -73,7 +79,7 @@ ARFLAGS= @ARFLAGS@
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# Extra C flags added for building the interpreter object files.
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CFLAGSFORSHARED=@CFLAGSFORSHARED@
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# C flags used for building the interpreter object files
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PY_CFLAGS= $(CFLAGS) $(CPPFLAGS) $(CFLAGSFORSHARED) -DPy_BUILD_CORE
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PY_CORE_CFLAGS= $(PY_CFLAGS) $(PY_CPPFLAGS) $(CFLAGSFORSHARED) -DPy_BUILD_CORE
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# Machine-dependent subdirectories
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@ -411,7 +417,7 @@ coverage:
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# Build the interpreter
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$(BUILDPYTHON): Modules/python.o $(LIBRARY) $(LDLIBRARY)
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$(LINKCC) $(LDFLAGS) $(LINKFORSHARED) -o $@ \
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$(LINKCC) $(PY_LDFLAGS) $(LINKFORSHARED) -o $@ \
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Modules/python.o \
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$(BLDLIBRARY) $(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST)
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@ -422,8 +428,8 @@ platform: $(BUILDPYTHON)
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# Build the shared modules
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sharedmods: $(BUILDPYTHON)
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@case $$MAKEFLAGS in \
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*s*) $(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' LDFLAGS='$(LDFLAGS)' OPT='$(OPT)' ./$(BUILDPYTHON) -E $(srcdir)/setup.py -q build;; \
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*) $(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' LDFLAGS='$(LDFLAGS)' OPT='$(OPT)' ./$(BUILDPYTHON) -E $(srcdir)/setup.py build;; \
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*s*) $(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' LDFLAGS='$(PY_LDFLAGS)' OPT='$(OPT)' ./$(BUILDPYTHON) -E $(srcdir)/setup.py -q build;; \
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*) $(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' LDFLAGS='$(PY_LDFLAGS)' OPT='$(OPT)' ./$(BUILDPYTHON) -E $(srcdir)/setup.py build;; \
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esac
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# Build static library
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@ -440,18 +446,18 @@ $(LIBRARY): $(LIBRARY_OBJS)
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libpython$(VERSION).so: $(LIBRARY_OBJS)
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if test $(INSTSONAME) != $(LDLIBRARY); then \
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$(LDSHARED) $(LDFLAGS) -Wl,-h$(INSTSONAME) -o $(INSTSONAME) $(LIBRARY_OBJS) $(MODLIBS) $(SHLIBS) $(LIBC) $(LIBM) $(LDLAST); \
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$(LDSHARED) $(PY_LDFLAGS) -Wl,-h$(INSTSONAME) -o $(INSTSONAME) $(LIBRARY_OBJS) $(MODLIBS) $(SHLIBS) $(LIBC) $(LIBM) $(LDLAST); \
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$(LN) -f $(INSTSONAME) $@; \
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else \
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$(LDSHARED) $(LDFLAGS) -o $@ $(LIBRARY_OBJS) $(MODLIBS) $(SHLIBS) $(LIBC) $(LIBM) $(LDLAST); \
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$(LDSHARED) $(PY_LDFLAGS) -o $@ $(LIBRARY_OBJS) $(MODLIBS) $(SHLIBS) $(LIBC) $(LIBM) $(LDLAST); \
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fi
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libpython$(VERSION).dylib: $(LIBRARY_OBJS)
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$(CC) -dynamiclib -Wl,-single_module $(LDFLAGS) -undefined dynamic_lookup -Wl,-install_name,$(prefix)/lib/libpython$(VERSION).dylib -Wl,-compatibility_version,$(VERSION) -Wl,-current_version,$(VERSION) -o $@ $(LIBRARY_OBJS) $(SHLIBS) $(LIBC) $(LIBM) $(LDLAST); \
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$(CC) -dynamiclib -Wl,-single_module $(PY_LDFLAGS) -undefined dynamic_lookup -Wl,-install_name,$(prefix)/lib/libpython$(VERSION).dylib -Wl,-compatibility_version,$(VERSION) -Wl,-current_version,$(VERSION) -o $@ $(LIBRARY_OBJS) $(SHLIBS) $(LIBC) $(LIBM) $(LDLAST); \
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libpython$(VERSION).sl: $(LIBRARY_OBJS)
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$(LDSHARED) $(LDFLAGS) -o $@ $(LIBRARY_OBJS) $(MODLIBS) $(SHLIBS) $(LIBC) $(LIBM) $(LDLAST)
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$(LDSHARED) $(PY_LDFLAGS) -o $@ $(LIBRARY_OBJS) $(MODLIBS) $(SHLIBS) $(LIBC) $(LIBM) $(LDLAST)
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# Copy up the gdb python hooks into a position where they can be automatically
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# loaded by gdb during Lib/test/test_gdb.py
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@ -497,7 +503,7 @@ $(PYTHONFRAMEWORKDIR)/Versions/$(VERSION)/$(PYTHONFRAMEWORK): \
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# for a shared core library; otherwise, this rule is a noop.
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$(DLLLIBRARY) libpython$(VERSION).dll.a: $(LIBRARY_OBJS)
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if test -n "$(DLLLIBRARY)"; then \
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$(LDSHARED) $(LDFLAGS) -Wl,--out-implib=$@ -o $(DLLLIBRARY) $^ \
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$(LDSHARED) $(PY_LDFLAGS) -Wl,--out-implib=$@ -o $(DLLLIBRARY) $^ \
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$(LIBS) $(MODLIBS) $(SYSLIBS) $(LDLAST); \
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else true; \
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fi
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@ -541,10 +547,10 @@ Modules/getbuildinfo.o: $(PARSER_OBJS) \
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$(SIGNAL_OBJS) \
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$(MODOBJS) \
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$(srcdir)/Modules/getbuildinfo.c
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$(CC) -c $(PY_CFLAGS) -DSVNVERSION="\"`LC_ALL=C $(SVNVERSION)`\"" -o $@ $(srcdir)/Modules/getbuildinfo.c
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$(CC) -c $(PY_CORE_CFLAGS) -DSVNVERSION="\"`LC_ALL=C $(SVNVERSION)`\"" -o $@ $(srcdir)/Modules/getbuildinfo.c
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Modules/getpath.o: $(srcdir)/Modules/getpath.c Makefile
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$(CC) -c $(PY_CFLAGS) -DPYTHONPATH='"$(PYTHONPATH)"' \
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$(CC) -c $(PY_CORE_CFLAGS) -DPYTHONPATH='"$(PYTHONPATH)"' \
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-DPREFIX='"$(prefix)"' \
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-DEXEC_PREFIX='"$(exec_prefix)"' \
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-DVERSION='"$(VERSION)"' \
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@ -552,7 +558,7 @@ Modules/getpath.o: $(srcdir)/Modules/getpath.c Makefile
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-o $@ $(srcdir)/Modules/getpath.c
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Modules/python.o: $(srcdir)/Modules/python.c
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$(MAINCC) -c $(PY_CFLAGS) -o $@ $(srcdir)/Modules/python.c
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$(MAINCC) -c $(PY_CORE_CFLAGS) -o $@ $(srcdir)/Modules/python.c
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$(IO_OBJS): $(IO_H)
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@ -561,7 +567,7 @@ $(GRAMMAR_H) $(GRAMMAR_C): $(PGEN) $(GRAMMAR_INPUT)
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-$(PGEN) $(GRAMMAR_INPUT) $(GRAMMAR_H) $(GRAMMAR_C)
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$(PGEN): $(PGENOBJS)
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$(CC) $(OPT) $(LDFLAGS) $(PGENOBJS) $(LIBS) -o $(PGEN)
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$(CC) $(OPT) $(PY_LDFLAGS) $(PGENOBJS) $(LIBS) -o $(PGEN)
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Parser/grammar.o: $(srcdir)/Parser/grammar.c \
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$(srcdir)/Include/token.h \
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@ -581,10 +587,10 @@ $(AST_C): $(AST_ASDL) $(ASDLGEN_FILES)
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Python/compile.o Python/symtable.o Python/ast.o: $(GRAMMAR_H) $(AST_H)
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Python/getplatform.o: $(srcdir)/Python/getplatform.c
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$(CC) -c $(PY_CFLAGS) -DPLATFORM='"$(MACHDEP)"' -o $@ $(srcdir)/Python/getplatform.c
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$(CC) -c $(PY_CORE_CFLAGS) -DPLATFORM='"$(MACHDEP)"' -o $@ $(srcdir)/Python/getplatform.c
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Python/importdl.o: $(srcdir)/Python/importdl.c
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$(CC) -c $(PY_CFLAGS) -I$(DLINCLDIR) -o $@ $(srcdir)/Python/importdl.c
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$(CC) -c $(PY_CORE_CFLAGS) -I$(DLINCLDIR) -o $@ $(srcdir)/Python/importdl.c
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Objects/unicodectype.o: $(srcdir)/Objects/unicodectype.c \
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$(srcdir)/Objects/unicodetype_db.h
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@ -1130,7 +1136,7 @@ config.status: $(srcdir)/configure
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# Some make's put the object file in the current directory
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.c.o:
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$(CC) -c $(PY_CFLAGS) -o $@ $<
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$(CC) -c $(PY_CORE_CFLAGS) -o $@ $<
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# Run reindent on the library
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reindent:
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@ -1530,6 +1530,12 @@ Extension Modules
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Build
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-----
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- Issue #9189: Make a user-specified CFLAGS, CPPFLAGS, or LDFLAGS
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setting override the configure and makefile defaults, without
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deleting options the user didn't intend to override. Developers
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should no longer need to specify OPT or EXTRA_CFLAGS, although those
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variables are still present for backward-compatibility.
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- Issue #8854: Fix finding Visual Studio 2008 on Windows x64.
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- Issue #1759169, #8864: Drop _XOPEN_SOURCE on Solaris, define it for
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@ -219,7 +219,7 @@ sed -e 's/[ ]*#.*//' -e '/^[ ]*$/d' |
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case $doconfig in
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no) cc="$cc \$(CCSHARED) \$(CFLAGS) \$(CPPFLAGS)";;
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*)
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cc="$cc \$(PY_CFLAGS)";;
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cc="$cc \$(PY_CORE_CFLAGS)";;
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esac
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rule="$obj: $src; $cc $cpps -c $src -o $obj"
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echo "$rule" >>$rulesf
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21
configure
vendored
21
configure
vendored
@ -1929,11 +1929,11 @@ else
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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$ac_includes_default
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enum { N = $2 / 2 - 1 };
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int
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main ()
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{
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static int test_array [1 - 2 * !(enum { N = $2 / 2 - 1 };
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0 < ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1))];
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static int test_array [1 - 2 * !(0 < ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1))];
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test_array [0] = 0
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;
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@ -1944,11 +1944,11 @@ if ac_fn_c_try_compile "$LINENO"; then :
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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/* end confdefs.h. */
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$ac_includes_default
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enum { N = $2 / 2 - 1 };
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int
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main ()
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{
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static int test_array [1 - 2 * !(enum { N = $2 / 2 - 1 };
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($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1)
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static int test_array [1 - 2 * !(($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 1)
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< ($ac_type) ((((($ac_type) 1 << N) << N) - 1) * 2 + 2))];
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test_array [0] = 0
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@ -3158,9 +3158,12 @@ then
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(it is also a good idea to do 'make clean' before compiling)" "$LINENO" 5
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fi
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# If the user set CFLAGS, use this instead of the automatically
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# determined setting
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preset_cflags="$CFLAGS"
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# Don't let AC_PROG_CC set the default CFLAGS. It normally sets -g -O2
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# when the compiler supports them, but we don't always want -O2, and
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# we set -g later.
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if test -z "$CFLAGS"; then
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CFLAGS=
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fi
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ac_ext=c
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ac_cpp='$CPP $CPPFLAGS'
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ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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@ -3952,10 +3955,6 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
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ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
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ac_compiler_gnu=$ac_cv_c_compiler_gnu
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if test ! -z "$preset_cflags"
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then
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CFLAGS=$preset_cflags
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fi
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13
configure.in
13
configure.in
@ -461,14 +461,13 @@ then
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(it is also a good idea to do 'make clean' before compiling)])
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fi
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# If the user set CFLAGS, use this instead of the automatically
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# determined setting
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preset_cflags="$CFLAGS"
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AC_PROG_CC
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if test ! -z "$preset_cflags"
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then
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CFLAGS=$preset_cflags
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# Don't let AC_PROG_CC set the default CFLAGS. It normally sets -g -O2
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# when the compiler supports them, but we don't always want -O2, and
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# we set -g later.
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if test -z "$CFLAGS"; then
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CFLAGS=
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fi
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AC_PROG_CC
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AC_SUBST(CXX)
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AC_SUBST(MAINCC)
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