| Message ID | 20250324-b4-musl-gcc15-v1-20-ca68c03c5b01@gmail.com |
|---|---|
| State | Accepted, archived |
| Commit | 40413233429ceb902d8eb30ccc56aa7a182db772 |
| Headers | show |
| Series | musl/gcc-15: Fix packages to build with gcc15 on musl platforms | expand |
diff --git a/meta/recipes-devtools/syslinux/syslinux_6.04-pre2.bb b/meta/recipes-devtools/syslinux/syslinux_6.04-pre2.bb index fa7054bc54ffdc5d7249cc7904b7458695b3c4bb..7cf737170c3656a26f2d3f52ee15671c03558b1c 100644 --- a/meta/recipes-devtools/syslinux/syslinux_6.04-pre2.bb +++ b/meta/recipes-devtools/syslinux/syslinux_6.04-pre2.bb @@ -49,7 +49,7 @@ TARGET_LDFLAGS = "" SECURITY_LDFLAGS = "" LDFLAGS_SECTION_REMOVAL = "" -CFLAGS += "-DNO_INLINE_FUNCS -Wno-error=implicit-function-declaration" +CFLAGS += "-DNO_INLINE_FUNCS -Wno-error=implicit-function-declaration -idirafter ${STAGING_INCDIR}" EXTRA_OEMAKE = " \ BINDIR=${bindir} SBINDIR=${sbindir} LIBDIR=${libdir} \
syslinux uses -nostdinc to build freestanding, which makes sense, however it also tried to latch its own copy of stdarg.h to include system stdarg.h via "include_next" compiler magic, so it poses to provide own stdarg.h but then secretly include system version behind the scenes :) It uses -nostdinc -iwithprefix include hoping that gcc is uses and gcc has its include-fixed abstraction which also contains stdarg.h so in the end it will find a version of stdarg.h from system (even though it is from the compiler install ) and things will work. On musl, include-fixed is not expected and system includes are simplified so that everyone can look into <sysroot>/usr/include to find them. This can throw syslinux compilation into problems as now it does not find the header from -iprefix and ends up with errors like /mnt/b/yoe/master/sources/poky/build/tmp/work/core2-32-poky-linux-musl/syslinux/6.04-pre2/syslinux-6.04-pre2/com32/lib/../include/stdarg.h:9:15: fatal error: stdarg.h: No such file or directory 9 | #include_next <stdarg.h> | ^~~~~~~~~~ compilation terminated. Therefore, we use -idirafter to point it into target sysroot as fallback for system headers if it needs them, its added at the very last in search order. It also keeps working with glibc based toolchains as usual and also works with musl toolchains. Signed-off-by: Khem Raj <raj.khem@gmail.com> --- meta/recipes-devtools/syslinux/syslinux_6.04-pre2.bb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)