[PATCH v2 02/10] asctime: check for standards compliance (Solaris support)
Blake Jones
blakej at foo.net
Mon Nov 5 11:01:55 PST 2012
Add checks to "configure" to see whether _POSIX_PTHREAD_SEMANTICS needs
to be defined to get the right number of arguments in the prototypes for
asctime_r(). Solaris' default implementation conforms to POSIX.1c
Draft 6, rather than the final POSIX.1c spec. The standards-compliant
version can be used by defining _POSIX_PTHREAD_SEMANTICS.
This change also adds the file "compat/check_asctime.c", which
configure uses to perform its check, and modifies compat/compat.h to
define _POSIX_PTHREAD_SEMANTICS if configure detected it was needed.
---
compat/check_asctime.c | 18 ++++++++++++++++++
compat/compat.h | 3 +++
configure | 22 ++++++++++++++++++++--
3 files changed, 41 insertions(+), 2 deletions(-)
create mode 100644 compat/check_asctime.c
diff --git a/compat/check_asctime.c b/compat/check_asctime.c
new file mode 100644
index 0000000..c508fbf
--- /dev/null
+++ b/compat/check_asctime.c
@@ -0,0 +1,18 @@
+/*
+ * This compatibility check actually succeeds (on Solaris) if
+ * _POSIX_PTHREAD_SEMANTICS is not defined. But we need to #define that to get
+ * the right version of getpwuid_r(), so we define it here to ensure that the
+ * compatibility check ends up doing the same thing as the rest of the code.
+ */
+#define _POSIX_PTHREAD_SEMANTICS 1
+#include <time.h>
+#include <stdio.h>
+
+int main()
+{
+ struct tm tm;
+
+ (void) asctime_r (&tm, NULL, 0);
+
+ return (0);
+}
diff --git a/compat/compat.h b/compat/compat.h
index efea023..e5f833e 100644
--- a/compat/compat.h
+++ b/compat/compat.h
@@ -57,6 +57,9 @@ char* strcasestr(const char *haystack, const char *needle);
#if !STD_GETPWUID
#define _POSIX_PTHREAD_SEMANTICS 1
#endif
+#if !STD_ASCTIME
+#define _POSIX_PTHREAD_SEMANTICS 1
+#endif
#ifdef __cplusplus
}
diff --git a/configure b/configure
index bb5031e..d153f57 100755
--- a/configure
+++ b/configure
@@ -523,6 +523,17 @@ else
fi
rm -f compat/check_getpwuid
+printf "Checking for standard version of asctime_r... "
+if ${CC} -o compat/check_asctime "$srcdir"/compat/check_asctime.c > /dev/null 2>&1
+then
+ printf "Yes.\n"
+ std_asctime=1
+else
+ printf "No (will define _POSIX_PTHREAD_SEMANTICS to get it).\n"
+ std_asctime=0
+fi
+rm -f compat/check_asctime
+
printf "int main(void){return 0;}\n" > minimal.c
printf "Checking for rpath support... "
@@ -687,6 +698,11 @@ HAVE_STRCASESTR = ${have_strcasestr}
# to enable the standards-compliant version -- needed for Solaris)
STD_GETPWUID = ${std_getpwuid}
+# Whether the asctime_r function is standards-compliant
+# (if not, then notmuch will #define _POSIX_PTHREAD_SEMANTICS
+# to enable the standards-compliant version -- needed for Solaris)
+STD_ASCTIME = ${std_asctime}
+
# Supported platforms (so far) are: LINUX, MACOSX, SOLARIS, FREEBSD, OPENBSD
PLATFORM = ${platform}
@@ -733,11 +749,13 @@ CONFIGURE_CFLAGS = -DHAVE_GETLINE=\$(HAVE_GETLINE) \$(GMIME_CFLAGS) \\
\$(TALLOC_CFLAGS) -DHAVE_VALGRIND=\$(HAVE_VALGRIND) \\
\$(VALGRIND_CFLAGS) \\
-DHAVE_STRCASESTR=\$(HAVE_STRCASESTR) \\
- -DSTD_GETPWUID=\$(STD_GETPWUID)
+ -DSTD_GETPWUID=\$(STD_GETPWUID) \\
+ -DSTD_ASCTIME=\$(STD_ASCTIME)
CONFIGURE_CXXFLAGS = -DHAVE_GETLINE=\$(HAVE_GETLINE) \$(GMIME_CFLAGS) \\
\$(TALLOC_CFLAGS) -DHAVE_VALGRIND=\$(HAVE_VALGRIND) \\
\$(VALGRIND_CFLAGS) \$(XAPIAN_CXXFLAGS) \\
-DHAVE_STRCASESTR=\$(HAVE_STRCASESTR) \\
- -DSTD_GETPWUID=\$(STD_GETPWUID)
+ -DSTD_GETPWUID=\$(STD_GETPWUID) \\
+ -DSTD_ASCTIME=\$(STD_ASCTIME)
CONFIGURE_LDFLAGS = \$(GMIME_LDFLAGS) \$(TALLOC_LDFLAGS) \$(XAPIAN_LDFLAGS)
EOF
--
1.7.3.2
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