[PATCH] autoconf: Add tests for memmem, strtoumax and mkdtemp functions

[Jakub Narebski <jnareb@gmail.com>]

Update configure.ac (and config.mak.in) to keep up with git
development by adding tests for memmem (NO_MEMMEM), strtoumax
(NO_STRTOUMAX) and mkdtemp (NO_MKDTEMP) functions.

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
---
This is beginning of "bring configure up to date" thingy.

By the way, do you have idea how to test for the following
in configure.ac:

* Define NO_PREAD if you have a problem with pread() system call (e.g.
  cygwin.dll before v1.5.22).

  - what is the problem? how to detect it?

* Define NO_FAST_WORKING_DIRECTORY if accessing objects in pack files is
  generally faster on your platform than accessing the working directory.

  - if at all possible

* Define NO_TRUSTABLE_FILEMODE if your filesystem may claim to support
  the executable mode bit, but doesn't really do so.

  - I think there were some code here

* Define NO_R_TO_GCC_LINKER if your gcc does not like "-R/path/lib"
  that tells runtime paths to dynamic libraries;
  "-Wl,-rpath=/path/lib" is used instead.

* Define NO_PERL_MAKEMAKER if you cannot use Makefiles generated by perl's
  MakeMaker (e.g. using ActiveState under Cygwin).

* Define ASCIIDOC8 if you want to format documentation with AsciiDoc 8
* Define DOCBOOK_XSL_172 if you want to format man pages with DocBook XSL v1.72.

  - it needs some portable way to check asciidoc and docbook-xsl version

* Define OLD_ICONV if your library has an old iconv(), where the second
  (input buffer pointer) parameter is declared with type (const char **).

  - perhaps compile with new iconv and check for compile errors?


 config.mak.in |    3 +++
 configure.ac  |   18 ++++++++++++++++++
 2 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/config.mak.in b/config.mak.in
index 776b805..11d256e 100644
--- a/config.mak.in
+++ b/config.mak.in
@@ -35,7 +35,10 @@ NO_SOCKADDR_STORAGE=@NO_SOCKADDR_STORAGE@
 NO_IPV6=@NO_IPV6@
 NO_C99_FORMAT=@NO_C99_FORMAT@
 NO_STRCASESTR=@NO_STRCASESTR@
+NO_MEMMEM=@NO_MEMMEM@
 NO_STRLCPY=@NO_STRLCPY@
+NO_STRTOUMAX=@NO_STRTOUMAX@
 NO_SETENV=@NO_SETENV@
+NO_MKDTEMP=@NO_MKDTEMP@
 NO_ICONV=@NO_ICONV@
 NO_DEFLATE_BOUND=@NO_DEFLATE_BOUND@
diff --git a/configure.ac b/configure.ac
index 53e9a17..7bcf1a4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -289,18 +289,36 @@ AC_CHECK_FUNC(strcasestr,
 [NO_STRCASESTR=YesPlease])
 AC_SUBST(NO_STRCASESTR)
 #
+# Define NO_MEMMEM if you don't have memmem.
+AC_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,
 [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,
+[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,
 [NO_SETENV=],
 [NO_SETENV=YesPlease])
 AC_SUBST(NO_SETENV)
 #
+# Define NO_MKDTEMP if you don't have mkdtemp in the C library.
+AC_CHECK_FUNC(mkdtemp,
+[NO_MKDTEMP=],
+[NO_MKDTEMP=YesPlease])
+AC_SUBST(NO_MKDTEMP)
+#
 # Define NO_MMAP if you want to avoid mmap.
 #
 # Define NO_ICONV if your libc does not properly support iconv.
-- 
1.5.3.5