ax_prog_cc_for_build.m4: update to latest#72
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shr-project wants to merge 1 commit intoapache:trunkfrom
Open
ax_prog_cc_for_build.m4: update to latest#72shr-project wants to merge 1 commit intoapache:trunkfrom
shr-project wants to merge 1 commit intoapache:trunkfrom
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After the autoconf update to 2.73 this was using -std=gnu23 even on hosts with gcc-13 which doesn't support it: ac_cv_prog_ac_ct_CC_FOR_BUILD='gcc ' CC_FOR_BUILD='gcc -std=gnu23' ac_ct_CC_FOR_BUILD='gcc ' Leading to: gcc: error: unrecognized command-line option ‘-std=gnu23’; did you mean ‘-std=gnu2x’? Needs the updated ac_cv_prog_cc_c23 from: autoconf-archive/autoconf-archive@8a970ce Signed-off-by: Martin Jansa <martin.jansa@gmail.com>
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While this fixes the build on older hosts, side-effect of this is build reproducibilty issue when cross-compiling on hosts with different gcc versions, the installed ${datadir}/build-1/apr_rules.mk will contain different CC_FOR_BUILD value based on which host it was built: CC_FOR_BUILD=gcc -std=gnu23 As detected by OpenEmbedded builds: |
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After the autoconf update to 2.73 this was using -std=gnu23 even on hosts with gcc-13 which doesn't support it:
ac_cv_prog_ac_ct_CC_FOR_BUILD='gcc '
CC_FOR_BUILD='gcc -std=gnu23'
ac_ct_CC_FOR_BUILD='gcc '
Leading to:
gcc: error: unrecognized command-line option ‘-std=gnu23’; did you mean ‘-std=gnu2x’?
Needs the updated ac_cv_prog_cc_c23 from:
autoconf-archive/autoconf-archive@8a970ce