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curl-compilers.m4: accept -Og and -Ofast GCC flags

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-Og, introduced in GCC 4.8, optimizes for debugging experience.
-Ofast, introduced in GCC 4.7, builds on -O3 and enables further
optimizations breaking strict standards compliance.
When specified in CFLAGS, these were always overridden by -O0 or -O2.
Fix this by adding them to flags_opt_all.

Ref: https://gcc.gnu.org/onlinedocs/gcc-4.8.0/gcc/Optimize-Options.html
Ref: https://github.com/curl/curl/pull/1404#issuecomment-296401570
Closes https://github.com/curl/curl/pull/1440
This commit is contained in:
Marcel Raad 2017-04-22 23:12:07 +02:00
parent 7474418074
commit 71d2d37005
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1 changed files with 1 additions and 1 deletions
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m4/curl-compilers.m4
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@ -158,7 +158,7 @@ AC_DEFUN([CURL_CHECK_COMPILER_GNU_C], [
flags_dbg_all="$flags_dbg_all -gvms"
flags_dbg_yes="-g"
flags_dbg_off=""
flags_opt_all="-O -O0 -O1 -O2 -O3 -Os"
flags_opt_all="-O -O0 -O1 -O2 -O3 -Os -Og -Ofast"
flags_opt_yes="-O2"
flags_opt_off="-O0"
CURL_CHECK_DEF([_WIN32], [], [silent])