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| author | Gregory Maxwell <greg@xiph.org> | 2013-09-10 17:51:05 -0700 |
|---|---|---|
| committer | Gregory Maxwell <greg@xiph.org> | 2013-09-10 17:51:05 -0700 |
| commit | 11a79680b174ec39d462925ea565a23aa8c147ad (patch) | |
| tree | 6b38ba89eb3110af8a9c93a49ed141da2eeaef63 /src/m4/bitcoin_subdir_to_include.m4 | |
| parent | 85311c1ef8b438a93ecf04c100e877fb49634a90 (diff) | |
| parent | 1e9d3b1392b604fafc6802e4d43469f519d14424 (diff) | |
Merge pull request #2979 from luke-jr/autoconf
Autoconf fixes
Diffstat (limited to 'src/m4/bitcoin_subdir_to_include.m4')
| -rw-r--r-- | src/m4/bitcoin_subdir_to_include.m4 | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/m4/bitcoin_subdir_to_include.m4 b/src/m4/bitcoin_subdir_to_include.m4 new file mode 100644 index 0000000000..9b37a75ef0 --- /dev/null +++ b/src/m4/bitcoin_subdir_to_include.m4 @@ -0,0 +1,12 @@ +dnl BITCOIN_SUBDIR_TO_INCLUDE([CPPFLAGS-VARIABLE-NAME],[SUBDIRECTORY-NAME],[HEADER-FILE]) +dnl SUBDIRECTORY-NAME must end with a path separator +AC_DEFUN([BITCOIN_SUBDIR_TO_INCLUDE],[ + if test "x$2" = "x"; then + AC_MSG_RESULT([default]) + else + echo "#include <$2$3.h>" >conftest.cpp + newinclpath=`${CXXCPP} -M conftest.cpp 2>/dev/null | [ tr -d '\\n\\r\\\\' | sed -e 's/^.*[[:space:]:]\(\/[^[:space:]]*\)]$3[\.h[[:space:]].*$/\1/' -e t -e d`] + AC_MSG_RESULT([${newinclpath}]) + eval "$1=\"\$$1\"' -I${newinclpath}'" + fi +]) |