diff options
author | bde <bde@FreeBSD.org> | 1994-08-30 16:36:49 +0000 |
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committer | bde <bde@FreeBSD.org> | 1994-08-30 16:36:49 +0000 |
commit | 199077a74392650626223a59afa8ce35352d0392 (patch) | |
tree | 2d32cd1eb9d849a828ce21134c73150936067bb1 /usr.bin/mkdep/mkdep.gcc.sh | |
parent | 066424d7d90e7d0765df0a003162d7ef0533da50 (diff) | |
download | FreeBSD-src-199077a74392650626223a59afa8ce35352d0392.zip FreeBSD-src-199077a74392650626223a59afa8ce35352d0392.tar.gz |
Use cc -E instead of cpp for the preprocessor by default. cc -E is
correct for C sources that are compiled by cc, while cpp (/usr/bin/cpp)
is bogus since it invokes /usr/libexec/cpp with different flags.
1.1.5 uses plain cc. This should be equivalent after -M is added, but
cc -M foo.s is completely broken (it invokes the assembler) while
cc -E -M foo.s just does nothing instead of generating a foo.o: foo.s
dependency.
IF $MKDEP_CPP is set, use it as the cpp instead of cc -E. Assembler
sources that are preprocessed using cpp directly should be mkdep'ed
with MKDEP_CPP=cpp. Such sources shouldn't exist but we still have
lots. foo.S should be compiled by cc -traditional (cc will invoke the
preprocessor) and foo.s should be compiled by cc (cc won't invoke the
preprocessor).
Diffstat (limited to 'usr.bin/mkdep/mkdep.gcc.sh')
-rw-r--r-- | usr.bin/mkdep/mkdep.gcc.sh | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/usr.bin/mkdep/mkdep.gcc.sh b/usr.bin/mkdep/mkdep.gcc.sh index 26f80d6..59e4e47 100644 --- a/usr.bin/mkdep/mkdep.gcc.sh +++ b/usr.bin/mkdep/mkdep.gcc.sh @@ -72,10 +72,15 @@ TMP=/tmp/mkdep$$ trap 'rm -f $TMP ; exit 1' 1 2 3 13 15 +# For C sources, mkdep must use exactly the same cpp and predefined flags +# as the compiler would. This is easily arranged by letting the compiler +# pick the cpp. mkdep must be told the cpp to use for exceptional cases. +MKDEP_CPP=${MKDEP_CPP-"cc -E"} + if [ x$pflag = x ]; then - cpp -M $* | sed -e 's; \./; ;g' > $TMP + $MKDEP_CPP -M $* | sed -e 's; \./; ;g' > $TMP else - cpp -M $* | sed -e 's;\.o :; :;' -e 's; \./; ;g' > $TMP + $MKDEP_CPP -M $* | sed -e 's;\.o :; :;' -e 's; \./; ;g' > $TMP fi if [ $? != 0 ]; then |