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authorDavid M. Syzdek <david.syzdek@acsalaska.net>2008-10-26 11:52:19 (GMT)
committerJunio C Hamano <gitster@pobox.com>2008-11-02 23:39:54 (GMT)
commit1689c5de8730ea334535337a341db3c7a21ad002 (patch)
treeaed02b7848d38356e7578583745ffbf44851561a /configure.ac
parent933bb3ae5e6c83288ec7c80c2282984f4927cb48 (diff)
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autoconf: Add link tests to each AC_CHECK_FUNC() test
Update configure.ac to test libraries for getaddrinfo, strcasestr, memmem, strlcpy, strtoumax, setenv, unsetenv, and mkdtemp. The default compilers on FreeBSD 4.9-SECURITY and FreeBSD 6.2-RELEASE-p4 do not generate warnings for missing prototypes unless `-Wall' is used. This behavior renders the results of AC_CHECK_FUNC() void on these platforms. The test AC_SEARCH_LIBS() verifies a function is valid by linking to symbol within the system libraries. Since this pattern needs to be repeated for many functions that are checked with AC_CHECK_FUNC(), we add GIT_CHECK_FUNC() to drive the two autoconf macros together. Signed-off-by: David M. Syzdek <david.syzdek@acsalaska.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac28
1 files changed, 19 insertions, 9 deletions
diff --git a/configure.ac b/configure.ac
index 27bab00..ef544e8 100644
--- a/configure.ac
+++ b/configure.ac
@@ -65,7 +65,17 @@ else \
fi \
])# GIT_PARSE_WITH
-
+dnl
+dnl GIT_CHECK_FUNC(FUNCTION, IFTRUE, IFFALSE)
+dnl -----------------------------------------
+dnl Similar to AC_CHECK_FUNC, but on systems that do not generate
+dnl warnings for missing prototypes (e.g. FreeBSD when compiling without
+dnl -Wall), it does not work. By looking for function definition in
+dnl libraries, this problem can be worked around.
+AC_DEFUN([GIT_CHECK_FUNC],[AC_CHECK_FUNC([$1],[
+ AC_SEARCH_LIBS([$1],,
+ [$2],[$3])
+],[$3])])
## Site configuration related to programs (before tests)
## --with-PACKAGE[=ARG] and --without-PACKAGE
#
@@ -325,7 +335,7 @@ AC_SUBST(NO_SOCKADDR_STORAGE)
#
# Define NO_IPV6 if you lack IPv6 support and getaddrinfo().
AC_CHECK_TYPE([struct addrinfo],[
- AC_CHECK_FUNC([getaddrinfo],
+ GIT_CHECK_FUNC([getaddrinfo],
[NO_IPV6=],
[NO_IPV6=YesPlease])
],[NO_IPV6=YesPlease],[
@@ -419,43 +429,43 @@ AC_SUBST(SNPRINTF_RETURNS_BOGUS)
AC_MSG_NOTICE([CHECKS for library functions])
#
# Define NO_STRCASESTR if you don't have strcasestr.
-AC_CHECK_FUNC(strcasestr,
+GIT_CHECK_FUNC(strcasestr,
[NO_STRCASESTR=],
[NO_STRCASESTR=YesPlease])
AC_SUBST(NO_STRCASESTR)
#
# Define NO_MEMMEM if you don't have memmem.
-AC_CHECK_FUNC(memmem,
+GIT_CHECK_FUNC(memmem,
[NO_MEMMEM=],
[NO_MEMMEM=YesPlease])
AC_SUBST(NO_MEMMEM)
#
# Define NO_STRLCPY if you don't have strlcpy.
-AC_CHECK_FUNC(strlcpy,
+GIT_CHECK_FUNC(strlcpy,
[NO_STRLCPY=],
[NO_STRLCPY=YesPlease])
AC_SUBST(NO_STRLCPY)
#
# Define NO_STRTOUMAX if you don't have strtoumax in the C library.
-AC_CHECK_FUNC(strtoumax,
+GIT_CHECK_FUNC(strtoumax,
[NO_STRTOUMAX=],
[NO_STRTOUMAX=YesPlease])
AC_SUBST(NO_STRTOUMAX)
#
# Define NO_SETENV if you don't have setenv in the C library.
-AC_CHECK_FUNC(setenv,
+GIT_CHECK_FUNC(setenv,
[NO_SETENV=],
[NO_SETENV=YesPlease])
AC_SUBST(NO_SETENV)
#
# Define NO_UNSETENV if you don't have unsetenv in the C library.
-AC_CHECK_FUNC(unsetenv,
+GIT_CHECK_FUNC(unsetenv,
[NO_UNSETENV=],
[NO_UNSETENV=YesPlease])
AC_SUBST(NO_UNSETENV)
#
# Define NO_MKDTEMP if you don't have mkdtemp in the C library.
-AC_CHECK_FUNC(mkdtemp,
+GIT_CHECK_FUNC(mkdtemp,
[NO_MKDTEMP=],
[NO_MKDTEMP=YesPlease])
AC_SUBST(NO_MKDTEMP)