nixpkgs/pkgs/development/interpreters/python/cpython/platform-triplet-detection.patch
Yureka ef60280d57
python311: fix cross to/from musl (#260641)
The situation:

Python <3.11: under Linux the abi string is always -gnu*

Python 3.11-3.12: musl is treated as its own abi in the python build system, but when cross-compiling the build host's libc is used for the target abi string. Cross compiling from glibc to musl gives a -gnu* target abi string and vice versa.

Python >=3.13: musl is treated as its own abi, and when cross-compiling the target libc is used for the target abi string

We backport the fix for python 3.11-3.12, since the intermediate state is almost impossible to model in the nix expression
2023-10-13 17:47:11 +02:00

296 lines
8.2 KiB
Diff

diff --git a/configure.ac b/configure.ac
index ba768aea93..621ac166bd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -936,125 +936,192 @@ cat > conftest.c <<EOF
#if defined(__ANDROID__)
# Android is not a multiarch system.
#elif defined(__linux__)
+# include <features.h>
+# if defined(__UCLIBC__)
+# error uclibc not supported
+# elif defined(__dietlibc__)
+# error dietlibc not supported
+# elif defined(__GLIBC__)
+# define LIBC gnu
+# define LIBC_X32 gnux32
+# if defined(__ARM_PCS_VFP)
+# define LIBC_ARM gnueabihf
+# else
+# define LIBC_ARM gnueabi
+# endif
+# if defined(__loongarch__)
+# if defined(__loongarch_soft_float)
+# define LIBC_LA gnusf
+# elif defined(__loongarch_single_float)
+# define LIBC_LA gnuf32
+# elif defined(__loongarch_double_float)
+# define LIBC_LA gnu
+# else
+# error unknown loongarch floating-point base abi
+# endif
+# endif
+# if defined(_MIPS_SIM)
+# if defined(__mips_hard_float)
+# if _MIPS_SIM == _ABIO32
+# define LIBC_MIPS gnu
+# elif _MIPS_SIM == _ABIN32
+# define LIBC_MIPS gnuabin32
+# elif _MIPS_SIM == _ABI64
+# define LIBC_MIPS gnuabi64
+# else
+# error unknown mips sim value
+# endif
+# else
+# if _MIPS_SIM == _ABIO32
+# define LIBC_MIPS gnusf
+# elif _MIPS_SIM == _ABIN32
+# define LIBC_MIPS gnuabin32sf
+# elif _MIPS_SIM == _ABI64
+# define LIBC_MIPS gnuabi64sf
+# else
+# error unknown mips sim value
+# endif
+# endif
+# endif
+# if defined(__SPE__)
+# define LIBC_PPC gnuspe
+# else
+# define LIBC_PPC gnu
+# endif
+# else
+# include <stdarg.h>
+# ifdef __DEFINED_va_list
+# define LIBC musl
+# define LIBC_X32 muslx32
+# if defined(__ARM_PCS_VFP)
+# define LIBC_ARM musleabihf
+# else
+# define LIBC_ARM musleabi
+# endif
+# if defined(__loongarch__)
+# if defined(__loongarch_soft_float)
+# define LIBC_LA muslsf
+# elif defined(__loongarch_single_float)
+# define LIBC_LA muslf32
+# elif defined(__loongarch_double_float)
+# define LIBC_LA musl
+# else
+# error unknown loongarch floating-point base abi
+# endif
+# endif
+# if defined(_MIPS_SIM)
+# if defined(__mips_hard_float)
+# if _MIPS_SIM == _ABIO32
+# define LIBC_MIPS musl
+# elif _MIPS_SIM == _ABIN32
+# define LIBC_MIPS musln32
+# elif _MIPS_SIM == _ABI64
+# define LIBC_MIPS musl
+# else
+# error unknown mips sim value
+# endif
+# else
+# if _MIPS_SIM == _ABIO32
+# define LIBC_MIPS muslsf
+# elif _MIPS_SIM == _ABIN32
+# define LIBC_MIPS musln32sf
+# elif _MIPS_SIM == _ABI64
+# define LIBC_MIPS muslsf
+# else
+# error unknown mips sim value
+# endif
+# endif
+# endif
+# if defined(_SOFT_FLOAT) || defined(__NO_FPRS__)
+# define LIBC_PPC muslsf
+# else
+# define LIBC_PPC musl
+# endif
+# else
+# error unknown libc
+# endif
+# endif
# if defined(__x86_64__) && defined(__LP64__)
- x86_64-linux-gnu
+ x86_64-linux-LIBC
# elif defined(__x86_64__) && defined(__ILP32__)
- x86_64-linux-gnux32
+ x86_64-linux-LIBC_X32
# elif defined(__i386__)
- i386-linux-gnu
+ i386-linux-LIBC
# elif defined(__aarch64__) && defined(__AARCH64EL__)
# if defined(__ILP32__)
- aarch64_ilp32-linux-gnu
+ aarch64_ilp32-linux-LIBC
# else
- aarch64-linux-gnu
+ aarch64-linux-LIBC
# endif
# elif defined(__aarch64__) && defined(__AARCH64EB__)
# if defined(__ILP32__)
- aarch64_be_ilp32-linux-gnu
+ aarch64_be_ilp32-linux-LIBC
# else
- aarch64_be-linux-gnu
+ aarch64_be-linux-LIBC
# endif
# elif defined(__alpha__)
- alpha-linux-gnu
-# elif defined(__ARM_EABI__) && defined(__ARM_PCS_VFP)
+ alpha-linux-LIBC
+# elif defined(__ARM_EABI__)
# if defined(__ARMEL__)
- arm-linux-gnueabihf
+ arm-linux-LIBC_ARM
# else
- armeb-linux-gnueabihf
-# endif
-# elif defined(__ARM_EABI__) && !defined(__ARM_PCS_VFP)
-# if defined(__ARMEL__)
- arm-linux-gnueabi
-# else
- armeb-linux-gnueabi
+ armeb-linux-LIBC_ARM
# endif
# elif defined(__hppa__)
- hppa-linux-gnu
+ hppa-linux-LIBC
# elif defined(__ia64__)
- ia64-linux-gnu
-# elif defined(__loongarch__)
-# if defined(__loongarch_lp64)
-# if defined(__loongarch_soft_float)
- loongarch64-linux-gnusf
-# elif defined(__loongarch_single_float)
- loongarch64-linux-gnuf32
-# elif defined(__loongarch_double_float)
- loongarch64-linux-gnu
+ ia64-linux-LIBC
+# elif defined(__loongarch__) && defined(__loongarch_lp64)
+ loongarch64-linux-LIBC_LA
+# elif defined(__m68k__) && !defined(__mcoldfire__)
+ m68k-linux-LIBC
+# elif defined(__mips__)
+# if defined(__mips_isa_rev) && (__mips_isa_rev >=6)
+# if defined(_MIPSEL) && defined(__mips64)
+ mipsisa64r6el-linux-LIBC_MIPS
+# elif defined(_MIPSEL)
+ mipsisa32r6el-linux-LIBC_MIPS
+# elif defined(__mips64)
+ mipsisa64r6-linux-LIBC_MIPS
# else
-# error unknown platform triplet
+ mipsisa32r6-linux-LIBC_MIPS
# endif
# else
-# error unknown platform triplet
-# endif
-# elif defined(__m68k__) && !defined(__mcoldfire__)
- m68k-linux-gnu
-# elif defined(__mips_hard_float) && defined(__mips_isa_rev) && (__mips_isa_rev >=6) && defined(_MIPSEL)
-# if _MIPS_SIM == _ABIO32
- mipsisa32r6el-linux-gnu
-# elif _MIPS_SIM == _ABIN32
- mipsisa64r6el-linux-gnuabin32
-# elif _MIPS_SIM == _ABI64
- mipsisa64r6el-linux-gnuabi64
-# else
-# error unknown platform triplet
-# endif
-# elif defined(__mips_hard_float) && defined(__mips_isa_rev) && (__mips_isa_rev >=6)
-# if _MIPS_SIM == _ABIO32
- mipsisa32r6-linux-gnu
-# elif _MIPS_SIM == _ABIN32
- mipsisa64r6-linux-gnuabin32
-# elif _MIPS_SIM == _ABI64
- mipsisa64r6-linux-gnuabi64
-# else
-# error unknown platform triplet
-# endif
-# elif defined(__mips_hard_float) && defined(_MIPSEL)
-# if _MIPS_SIM == _ABIO32
- mipsel-linux-gnu
-# elif _MIPS_SIM == _ABIN32
- mips64el-linux-gnuabin32
-# elif _MIPS_SIM == _ABI64
- mips64el-linux-gnuabi64
-# else
-# error unknown platform triplet
-# endif
-# elif defined(__mips_hard_float)
-# if _MIPS_SIM == _ABIO32
- mips-linux-gnu
-# elif _MIPS_SIM == _ABIN32
- mips64-linux-gnuabin32
-# elif _MIPS_SIM == _ABI64
- mips64-linux-gnuabi64
-# else
-# error unknown platform triplet
+# if defined(_MIPSEL) && defined(__mips64)
+ mips64el-linux-LIBC_MIPS
+# elif defined(_MIPSEL)
+ mipsel-linux-LIBC_MIPS
+# elif defined(__mips64)
+ mips64-linux-LIBC_MIPS
+# else
+ mips-linux-LIBC_MIPS
+# endif
# endif
# elif defined(__or1k__)
- or1k-linux-gnu
-# elif defined(__powerpc__) && defined(__SPE__)
- powerpc-linux-gnuspe
+ or1k-linux-LIBC
# elif defined(__powerpc64__)
# if defined(__LITTLE_ENDIAN__)
- powerpc64le-linux-gnu
+ powerpc64le-linux-LIBC
# else
- powerpc64-linux-gnu
+ powerpc64-linux-LIBC
# endif
# elif defined(__powerpc__)
- powerpc-linux-gnu
+ powerpc-linux-LIBC_PPC
# elif defined(__s390x__)
- s390x-linux-gnu
+ s390x-linux-LIBC
# elif defined(__s390__)
- s390-linux-gnu
+ s390-linux-LIBC
# elif defined(__sh__) && defined(__LITTLE_ENDIAN__)
- sh4-linux-gnu
+ sh4-linux-LIBC
# elif defined(__sparc__) && defined(__arch64__)
- sparc64-linux-gnu
+ sparc64-linux-LIBC
# elif defined(__sparc__)
- sparc-linux-gnu
+ sparc-linux-LIBC
# elif defined(__riscv)
# if __riscv_xlen == 32
- riscv32-linux-gnu
+ riscv32-linux-LIBC
# elif __riscv_xlen == 64
- riscv64-linux-gnu
+ riscv64-linux-LIBC
# else
# error unknown platform triplet
# endif
@@ -1102,12 +1169,7 @@ cat > conftest.c <<EOF
EOF
if $CPP $CPPFLAGS conftest.c >conftest.out 2>/dev/null; then
- PLATFORM_TRIPLET=`grep -v '^#' conftest.out | grep -v '^ *$' | tr -d ' '`
- case "$build_os" in
- linux-musl*)
- PLATFORM_TRIPLET=`echo "$PLATFORM_TRIPLET" | sed 's/linux-gnu/linux-musl/'`
- ;;
- esac
+ PLATFORM_TRIPLET=`grep -v '^#' conftest.out | grep -v '^ *$' | grep -v typedef | tr -d ' '`
AC_MSG_RESULT([$PLATFORM_TRIPLET])
else
AC_MSG_RESULT([none])