Commit aef6bd1b authored by Måns Rullgård's avatar Måns Rullgård
Browse files

Fix dependency generation with ccache/gcc

When running behind ccache, the output from -MMD is corrupted unless
we also use the -MF and -MT flags.

Since ccache is difficult to detect and gcc 2.x doesn't support the
-MF and -MT flags, we always use the old dependency generation method
when gcc 2.x is detected.

Originally committed as revision 19620 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 8f0c157a
......@@ -1510,8 +1510,10 @@ filter_asflags=echo
if $cc -v 2>&1 | grep -qi ^gcc; then
cc_type=gcc
CC_DEPFLAGS='-MMD'
AS_DEPFLAGS='-MMD'
if ! $cc -dumpversion | grep -q '^2\.'; then
CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
fi
elif $cc --version 2>/dev/null | grep -q Intel; then
cc_type=icc
CC_DEPFLAGS='-MMD'
......
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