New autoconf test for iconv

[thirdparty/git.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 0f93f6fe2948f338167d3c019b0fba014eeba508..3a8e778defcf1f0e1285664785c69d9213f99516 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -75,50 +75,15 @@ GIT_ARG_SET_PATH(shell)
 # Define PERL_PATH to provide path to Perl.
 GIT_ARG_SET_PATH(perl)
 #
-# Define NO_PYTHON if you want to lose all benefits of the recursive merge.
-# Define PYTHON_PATH to provide path to Python.
-AC_ARG_WITH(python,[AS_HELP_STRING([--with-python=PATH], [provide PATH to python])
-AS_HELP_STRING([--without-python], [don't use python scripts])],
- [if test "$withval" = "no"; then \
-    NO_PYTHON=YesPlease; \
-  elif test "$withval" = "yes"; then \
-    NO_PYTHON=; \
-  else \
-    NO_PYTHON=; \
-    PYTHON_PATH=$withval; \
-  fi; \
- ])
-AC_SUBST(NO_PYTHON)
-AC_SUBST(PYTHON_PATH)
 
 
 ## Checks for programs.
 AC_MSG_NOTICE([CHECKS for programs])
 #
 AC_PROG_CC([cc gcc])
-if test -n "$GCC"; then
-       PIC_FLAG="-fPIC"
-else
-       AC_CHECK_DECL(__SUNPRO_C, [CFLAGS="$CFLAGS -xO3"; PIC_FLAG="-KPIC"])
-fi
-AC_SUBST(PIC_FLAG)
-
 #AC_PROG_INSTALL               # needs install-sh or install.sh in sources
 AC_CHECK_TOOL(AR, ar, :)
 AC_CHECK_PROGS(TAR, [gtar tar])
-#
-# Define NO_PYTHON if you want to lose all benefits of the recursive merge.
-# Define PYTHON_PATH to provide path to Python.
-if test -z "$NO_PYTHON"; then
-       if test -z "$PYTHON_PATH"; then
-               AC_PATH_PROGS(PYTHON_PATH, [python python2.4 python2.3 python2])
-       fi
-       if test -n "$PYTHON_PATH"; then
-               GIT_CONF_APPEND_LINE([PYTHON_PATH=@PYTHON_PATH@])
-               NO_PYTHON=""
-       fi
-fi
-
 
 ## Checks for libraries.
 AC_MSG_NOTICE([CHECKS for libraries])
@@ -149,11 +114,35 @@ AC_CHECK_LIB([expat], [XML_ParserCreate],
 [NO_EXPAT=YesPlease])
 AC_SUBST(NO_EXPAT)
 #
-# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin).
-AC_CHECK_LIB([c], [iconv],
-[NEEDS_LIBICONV=],
-[NEEDS_LIBICONV=YesPlease])
+# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin and
+# some Solaris installations).
+# Define NO_ICONV if neither libc nor libiconv support iconv.
+AC_DEFUN([ICONVTEST_SRC], [
+#include <iconv.h>
+
+int main(void)
+{
+       iconv_open("", "");
+       return 0;
+}
+])
+AC_MSG_CHECKING([for iconv in -lc])
+AC_LINK_IFELSE(ICONVTEST_SRC,
+       [AC_MSG_RESULT([yes])
+       NEEDS_LIBICONV=],
+       [AC_MSG_RESULT([no])
+       old_LIBS="$LIBS"
+       LIBS="$LIBS -liconv"
+       AC_MSG_CHECKING([for iconv in -liconv])
+       AC_LINK_IFELSE(ICONVTEST_SRC,
+               [AC_MSG_RESULT([yes])
+               NEEDS_LIBICONV=YesPlease],
+               [AC_MSG_RESULT([no])
+               NO_ICONV=YesPlease])
+       LIBS="$old_LIBS"])
 AC_SUBST(NEEDS_LIBICONV)
+AC_SUBST(NO_ICONV)
+test -n "$NEEDS_LIBICONV" && LIBS="$LIBS -liconv"
 #
 # Define NEEDS_SOCKET if linking with libc is not enough (SunOS,
 # Patrick Mauritz).
@@ -211,8 +200,8 @@ AC_SUBST(NO_IPV6)
 # do not support the 'size specifiers' introduced by C99, namely ll, hh,
 # j, z, t. (representing long long int, char, intmax_t, size_t, ptrdiff_t).
 # some C compilers supported these specifiers prior to C99 as an extension.
-AC_CACHE_CHECK(whether formatted IO functions support C99 size specifiers,
- ac_cv_c_c99_format,
+AC_CACHE_CHECK([whether formatted IO functions support C99 size specifiers],
+ [ac_cv_c_c99_format],
 [# Actually git uses only %z (%zu) in alloc.c, and %t (%td) in mktag.c
 AC_RUN_IFELSE(
        [AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
@@ -265,12 +254,6 @@ AC_SUBST(NO_SETENV)
 #
 # Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
 # Enable it on Windows.  By default, symrefs are still used.
-#
-# Define WITH_OWN_SUBPROCESS_PY if you want to use with python 2.3.
-#
-# Define NO_ACCURATE_DIFF if your diff program at least sometimes misses
-# a missing newline at the end of the file.
-
 
 ## Site configuration (override autodetection)
 ## --with-PACKAGE[=ARG] and --without-PACKAGE
@@ -336,13 +319,19 @@ GIT_PARSE_WITH(expat))
 # library directories by defining CFLAGS and LDFLAGS appropriately.
 #
 # Define NO_MMAP if you want to avoid mmap.
+#
+# Define NO_ICONV if your libc does not properly support iconv.
+AC_ARG_WITH(iconv,
+AS_HELP_STRING([--without-iconv],
+[if your architecture doesn't properly support iconv])
+AS_HELP_STRING([--with-iconv=PATH],
+[PATH is prefix for libiconv library and headers])
+AS_HELP_STRING([],
+[used only if you need linking with libiconv]),
+GIT_PARSE_WITH(iconv))
 
 ## --enable-FEATURE[=ARG] and --disable-FEATURE
 #
-# Define COLLISION_CHECK below if you believe that SHA1's
-# 1461501637330902918203684832716283019655932542976 hashes do not give you
-# sufficient guarantee that no collisions between objects will ever happen.
-#
 # Define USE_NSEC below if you want git to care about sub-second file mtimes
 # and ctimes. Note that you need recent glibc (at least 2.2.4) for this, and
 # it will BREAK YOUR LOCAL DIFFS! show-diff and anything using it will likely