diff options
Diffstat (limited to 'build/flags-if.sh')
-rwxr-xr-x | build/flags-if.sh | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/build/flags-if.sh b/build/flags-if.sh new file mode 100755 index 0000000..81eb345 --- /dev/null +++ b/build/flags-if.sh @@ -0,0 +1,28 @@ +#!/bin/sh + +# Copyright © Tavian Barnes <tavianator@tavianator.com> +# SPDX-License-Identifier: 0BSD + +# Add flags to a makefile if a build succeeds + +set -eu + +build/cc.sh "$@" || exit 1 + +# If the build succeeded, print any lines like +# +# /// _CFLAGS += -foo +# +# (unless they're already set) +OLD_FLAGS="$XCC $XCPPFLAGS $XCFLAGS $XLDFLAGS $XLDLIBS" + +while IFS="" read -r line; do + case "$line" in + ///*=*) + flag="${line#*= }" + if [ "${OLD_FLAGS#*"$flag"}" = "$OLD_FLAGS" ]; then + printf '%s\n' "${line#/// }" + fi + ;; + esac +done <"$1" |