X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=configure.ac;h=50d2b85ace7d79ba1b8c576b54c6ef1f22ddf91f;hb=b568a503def81f49704ba94f5a822d523022102a;hp=34e34789bd295d0e06e548c797acc73889928053;hpb=73c7f5ec05428b7da2d1b00a02a3267f1235d8e4;p=git.git

diff --git a/configure.ac b/configure.ac
index 34e34789b..50d2b85ac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -75,6 +75,14 @@ GIT_ARG_SET_PATH(shell)
 # Define PERL_PATH to provide path to Perl.
 GIT_ARG_SET_PATH(perl)
 #
+# Declare the with-tcltk/without-tcltk options.
+AC_ARG_WITH(tcltk,
+AS_HELP_STRING([--with-tcltk],[use Tcl/Tk GUI (default is YES)])
+AS_HELP_STRING([],[ARG is the full path to the Tcl/Tk interpreter.])
+AS_HELP_STRING([],[Bare --with-tcltk will make the GUI part only if])
+AS_HELP_STRING([],[Tcl/Tk interpreter will be found in a system.]),\
+GIT_PARSE_WITH(tcltk))
+#
 
 
 ## Checks for programs.
@@ -84,6 +92,22 @@ AC_PROG_CC([cc gcc])
 #AC_PROG_INSTALL		# needs install-sh or install.sh in sources
 AC_CHECK_TOOL(AR, ar, :)
 AC_CHECK_PROGS(TAR, [gtar tar])
+# TCLTK_PATH will be set to some value if we want Tcl/Tk
+# or will be empty otherwise.
+if test -z "$NO_TCLTK"; then
+  if test "$with_tcltk" = ""; then
+  # No Tcl/Tk switches given. Do not check for Tcl/Tk, use bare 'wish'.
+    TCLTK_PATH=wish
+    AC_SUBST(TCLTK_PATH)
+  elif test "$with_tcltk" = "yes"; then
+  # Tcl/Tk check requested.
+    AC_CHECK_PROGS(TCLTK_PATH, [wish], )
+  else
+    AC_MSG_RESULT([Using Tcl/Tk interpreter $with_tcltk])
+    TCLTK_PATH="$with_tcltk"
+    AC_SUBST(TCLTK_PATH)
+  fi
+fi
 
 ## Checks for libraries.
 AC_MSG_NOTICE([CHECKS for libraries])
@@ -114,13 +138,32 @@ AC_CHECK_LIB([expat], [XML_ParserCreate],
 [NO_EXPAT=YesPlease])
 AC_SUBST(NO_EXPAT)
 #
-# Define NEEDS_LIBICONV if linking with libc is not enough (Darwin).
+# 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_CHECK_LIB([c], [iconv],
-	[NEEDS_LIBICONV=],
-	AC_CHECK_LIB([iconv], [iconv],
-		[NEEDS_LIBICONV=YesPlease],
-		[NO_ICONV=YesPlease]))
+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"
@@ -235,9 +278,6 @@ 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 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
@@ -316,10 +356,6 @@ 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