X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=utils%2Ffgadmin%2Fconfigure.ac;h=0b48693aa35e16aea94f7cb277f3af2784f4730f;hb=09adb5ee05ed96c6fa9d8c77e963d09adf57ef03;hp=026267a9f99ac0ccf442bf5bbcce3c95e1cf6932;hpb=35f63ba709e0db0e8fe7f77d427faa1b6cdafcf5;p=flightgear.git

diff --git a/utils/fgadmin/configure.ac b/utils/fgadmin/configure.ac
index 026267a9f..0b48693aa 100644
--- a/utils/fgadmin/configure.ac
+++ b/utils/fgadmin/configure.ac
@@ -48,16 +48,16 @@ AC_CHECK_HEADER(windows.h)
 
 dnl Checks for libraries.
 
-AC_CHECK_LIB(fltk,main,LIBS="$LIBS `fltk-config --use-images --ldflags`"
-             LDFLAGS="$LDFLAGS `fltk-config --use-images --ldflags`"
-	     CPPFLAGS="$CPPFLAGS `fltk-config --cxxflags`",
-  AC_MSG_ERROR(fltk library required get it at http://www.fltk.org))
-
 # The following are C++ items that need to be tested for with the c++
 # compiler
 
 AC_LANG_PUSH(C++)
 
+AC_CHECK_LIB(fltk,fl_yes,LIBS="$LIBS `fltk-config --use-images --ldflags`"
+             LDFLAGS="$LDFLAGS `fltk-config --use-images --ldflags`"
+	     CPPFLAGS="$CPPFLAGS `fltk-config --cxxflags`",
+  AC_MSG_ERROR(fltk library required get it at http://www.fltk.org))
+
 # Check for "plib" without which we cannot go on
 AC_CHECK_HEADER(plib/ul.h)
 if test "x$ac_cv_header_plib_ul_h" != "xyes"; then
@@ -166,20 +166,6 @@ else
     AC_DEFINE([HAVE_ZLIB], 1, [Define to enable gz compressed tar archives])
 fi
 
-dnl Check for system installed zlib
-AC_CHECK_HEADER(libtar.h)
-if test "x$ac_cv_header_libtar_h" != "xyes"; then
-    echo
-    echo "libtar library not found."
-    echo
-    echo "If your OS does not provide an installable package for libtar"
-    echo "you will have to compile and install it first yourself."
-    echo
-    echo "configure aborted."
-    echo
-    exit
-fi
-
 dnl Checks for header files.
 AC_HEADER_STDC
 AC_CHECK_HEADERS( errno.h fcntl.h sys/types.h sys/stat.h )