On May 2, 2011 11:08 AM, "Marcin Slusarz" <<a href="mailto:marcin.slusarz@gmail.com">marcin.slusarz@gmail.com</a>> wrote: > > Less recompiles... > --- > bin/extract_git_sha1 | 10 ++++++++-- > src/mesa/main/.gitignore | 1 + > 2 files changed, 9 insertions(+), 2 deletions(-) > > diff --git a/bin/extract_git_sha1 b/bin/extract_git_sha1 > index e6e6731..5e635d4 100755 > --- a/bin/extract_git_sha1 > +++ b/bin/extract_git_sha1 > @@ -1,10 +1,16 @@ > #!/bin/sh > -touch src/mesa/main/git_sha1.h > +if [ ! -f src/mesa/main/git_sha1.h ]; then > + touch src/mesa/main/git_sha1.h > +fi > + > if which git > /dev/null; then > # Extract the 7-digit "short" SHA1 for the current HEAD, convert > # it to a string, and wrap it in a #define. This is used in > # src/mesa/main/version.c to put the GIT SHA1 in the GL_VERSION string. > git log -n 1 --oneline |\ > sed 's/^\([^ ]*\) .*/#define MESA_GIT_SHA1 "git-\1"/' \ > - > src/mesa/main/git_sha1.h > + > src/mesa/main/git_sha1.h.tmp > + if ! cmp -s src/mesa/main/git_sha1.h.tmp src/mesa/main/git_sha1.h; then > + mv src/mesa/main/git_sha1.h.tmp src/mesa/main/git_sha1.h > + fi > fi > diff --git a/src/mesa/main/.gitignore b/src/mesa/main/.gitignore > index e48030e..2575f44 100644 > --- a/src/mesa/main/.gitignore > +++ b/src/mesa/main/.gitignore > @@ -3,3 +3,4 @@ api_exec_es2.c > get_es1.c > get_es2.c > git_sha1.h > +git_sha1.h.tmp > -- > 1.7.4.1 Reviewed-by: Dan Nicholson <<a href="mailto:dbn.lists@gmail.com">dbn.lists@gmail.com</a>>