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configure: Automatically add -isysroot for darwin if --sysroot is specified 

Check the existing flags in the cc/cflags/cppflags/ldflags for
occurrances of -isysroot; if none is found but --sysroot was specified,
set -isysroot to the same value as --sysroot.

This simplifies configuring cross-builds for iOS, if the global
environment variable SDKROOT isn't set.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2017-06-21 16:54:22 +03:00
parent f519e131c1
commit 333a34da3a
1 changed files with 4 additions and 0 deletions
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4
configure vendored
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@ -3981,6 +3981,10 @@ case $target_os in
{ check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; } { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
check_header dispatch/dispatch.h && check_header dispatch/dispatch.h &&
add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore' add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
if test -n "$sysroot"; then
is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
fi
;; ;;
msys*) msys*)
die "Native MSYS builds are discouraged, please use the MINGW environment." die "Native MSYS builds are discouraged, please use the MINGW environment."