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| author | Eelco Dolstra <e.dolstra@tudelft.nl> | 2010-10-04 16:16:19 +0000 |
|---|---|---|
| committer | Eelco Dolstra <e.dolstra@tudelft.nl> | 2010-10-04 16:16:19 +0000 |
| commit | 95f4f2cf6102f95abf6948d74907c44c3540eddd (patch) | |
| tree | f3b6c986dac065190da8a3204a0eaa9b180feabf /configure.ac | |
| parent | 36a23e86b6ab1265bbf883dd71bc844f7c9183f3 (diff) | |
| download | guix-95f4f2cf6102f95abf6948d74907c44c3540eddd.tar.gz | |
* If std::tr1::unordered_set is unavailable, use std::set.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 094e6bd09c..1caa9be5c4 100644 --- a/configure.ac +++ b/configure.ac @@ -140,11 +140,18 @@ AC_LANG_POP(C++) AC_CHECK_HEADER([err.h], [], [bsddiff_compat_include="-Icompat-include"]) AC_SUBST([bsddiff_compat_include]) + # Check whether we have the personality() syscall, which allows us to # do i686-linux builds on x86_64-linux machines. AC_CHECK_HEADERS([sys/personality.h]) +# Check for tr1/unordered_set. +AC_LANG_PUSH(C++) +AC_CHECK_HEADERS([tr1/unordered_set], [], [], []) +AC_LANG_POP(C++) + + AC_DEFUN([NEED_PROG], [ AC_PATH_PROG($1, $2) |