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| author | Michal Rokos <michal.rokos@nextsoft.cz> | 2008-03-11 09:48:34 +0100 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2008-03-11 02:10:43 -0700 |
| commit | 8ce1f243e5456eab52486b955389be2521dfcca5 (patch) | |
| tree | e58ad41abd98a26bd62439d7a962f6f229d8b600 /configure.ac | |
| parent | 50753d00d691c1ea16bc72446705aee2c128fc2f (diff) | |
| download | git-8ce1f243e5456eab52486b955389be2521dfcca5.tar.gz git-8ce1f243e5456eab52486b955389be2521dfcca5.tar.xz | |
autoconf: Test FREAD_READS_DIRECTORIES
Add test for FREAD_READS_DIRECTORIES to detect when fread() reads fopen'ed
directory.
Tested on these platforms:
AIX 5.3 - FREAD_READS_DIRECTORIES=UnfortunatelyYes
HP-UX B.11.11 - FREAD_READS_DIRECTORIES=UnfortunatelyYes
HP-UX B.11.23 - FREAD_READS_DIRECTORIES=UnfortunatelyYes
Linux 2.6.25-rc4 - FREAD_READS_DIRECTORIES=
Tru64 V5.1 - FREAD_READS_DIRECTORIES=UnfortunatelyYes
Windows - FREAD_READS_DIRECTORIES=
Signed-off-by: Michal Rokos <michal.rokos@nextsoft.cz>
Tested-by: Mike Ralphson <mike@abacus.co.uk>
Tested-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 287149d30..82584e915 100644 --- a/configure.ac +++ b/configure.ac @@ -327,6 +327,26 @@ else fi AC_SUBST(NO_C99_FORMAT) # +# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds +# when attempting to read from an fopen'ed directory. +AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory], + [ac_cv_fread_reads_directories], +[ +AC_RUN_IFELSE( + [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT], + [[char c; + FILE *f = fopen(".", "r"); + return f && fread(&c, 1, 1, f)]])], + [ac_cv_fread_reads_directories=no], + [ac_cv_fread_reads_directories=yes]) +]) +if test $ac_cv_fread_reads_directories = yes; then + FREAD_READS_DIRECTORIES=UnfortunatelyYes +else + FREAD_READS_DIRECTORIES= +fi +AC_SUBST(FREAD_READS_DIRECTORIES) +# # Define SNPRINTF_RETURNS_BOGUS if your are on a system which snprintf() # or vsnprintf() return -1 instead of number of characters which would # have been written to the final string if enough space had been available. |