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Append instead of Prepend user-CFLAGS to default CFLAGS allowing the user to override default variables

This commit is contained in:
Jonas Nick 2019-12-17 12:37:48 +00:00
parent 613c34cd86
commit ecba8138ec
1 changed files with 7 additions and 7 deletions
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14
configure.ac
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@ -59,11 +59,11 @@ case $host_os in
;; ;;
esac esac
CFLAGS="$CFLAGS -W" CFLAGS="-W $CFLAGS"
warn_CFLAGS="-std=c89 -pedantic -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes -Wno-unused-function -Wno-long-long -Wno-overlength-strings" warn_CFLAGS="-std=c89 -pedantic -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes -Wno-unused-function -Wno-long-long -Wno-overlength-strings"
saved_CFLAGS="$CFLAGS" saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $warn_CFLAGS" CFLAGS="$warn_CFLAGS $CFLAGS"
AC_MSG_CHECKING([if ${CC} supports ${warn_CFLAGS}]) AC_MSG_CHECKING([if ${CC} supports ${warn_CFLAGS}])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])], AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
[ AC_MSG_RESULT([yes]) ], [ AC_MSG_RESULT([yes]) ],
@ -72,7 +72,7 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
]) ])
saved_CFLAGS="$CFLAGS" saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fvisibility=hidden" CFLAGS="-fvisibility=hidden $CFLAGS"
AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden]) AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])], AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
[ AC_MSG_RESULT([yes]) ], [ AC_MSG_RESULT([yes]) ],
@ -173,10 +173,10 @@ AC_CHECK_TYPES([__int128])
if test x"$enable_coverage" = x"yes"; then if test x"$enable_coverage" = x"yes"; then
AC_DEFINE(COVERAGE, 1, [Define this symbol to compile out all VERIFY code]) AC_DEFINE(COVERAGE, 1, [Define this symbol to compile out all VERIFY code])
CFLAGS="$CFLAGS -O0 --coverage" CFLAGS="-O0 --coverage $CFLAGS"
LDFLAGS="$LDFLAGS --coverage" LDFLAGS="--coverage $LDFLAGS"
else else
CFLAGS="$CFLAGS -O3" CFLAGS="-O3 $CFLAGS"
fi fi
if test x"$use_ecmult_static_precomputation" != x"no"; then if test x"$use_ecmult_static_precomputation" != x"no"; then
@ -194,7 +194,7 @@ if test x"$use_ecmult_static_precomputation" != x"no"; then
warn_CFLAGS_FOR_BUILD="-Wall -Wextra -Wno-unused-function" warn_CFLAGS_FOR_BUILD="-Wall -Wextra -Wno-unused-function"
saved_CFLAGS="$CFLAGS" saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $warn_CFLAGS_FOR_BUILD" CFLAGS="$warn_CFLAGS_FOR_BUILD $CFLAGS"
AC_MSG_CHECKING([if native ${CC_FOR_BUILD} supports ${warn_CFLAGS_FOR_BUILD}]) AC_MSG_CHECKING([if native ${CC_FOR_BUILD} supports ${warn_CFLAGS_FOR_BUILD}])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])], AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
[ AC_MSG_RESULT([yes]) ], [ AC_MSG_RESULT([yes]) ],