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| author | Cory Fields <cory-nospam-@coryfields.com> | 2013-09-18 17:09:11 -0400 |
|---|---|---|
| committer | Cory Fields <cory-nospam-@coryfields.com> | 2013-09-18 17:11:41 -0400 |
| commit | c546dc05bb5f0e6020a7e3ecf5cda70f0f472d76 (patch) | |
| tree | 91fe410f14b788d1e9358a6fe4fff2593b0d74ad /src/m4 | |
| parent | 2e9c8aed310bb90b607954f3b0d5135545f55a10 (diff) | |
| download | bitcoin-c546dc05bb5f0e6020a7e3ecf5cda70f0f472d76.tar.xz | |
autotools: fix subdir m4 check, never let it return -I
If BDB_CPPFLAGS returns only "-I", the next argument sent to the preprocessor
is treated as a path. There are 2 fixes here:
1. Check in CPPFLAGS, as a user might have manually passed a path to check.
2. Ensure the value is not empty before setting BDB_CPPFLAGS to "-I value"
Diffstat (limited to 'src/m4')
| -rw-r--r-- | src/m4/bitcoin_subdir_to_include.m4 | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/m4/bitcoin_subdir_to_include.m4 b/src/m4/bitcoin_subdir_to_include.m4 index 9b37a75ef0..66f106c7d4 100644 --- a/src/m4/bitcoin_subdir_to_include.m4 +++ b/src/m4/bitcoin_subdir_to_include.m4 @@ -5,8 +5,10 @@ AC_DEFUN([BITCOIN_SUBDIR_TO_INCLUDE],[ 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`] + newinclpath=`${CXXCPP} ${CPPFLAGS} -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${newinclpath}'" + if test "x${newinclpath}" != "x"; then + eval "$1=\"\$$1\"' -I${newinclpath}'" + fi fi ]) |