rm config.h

it's not needed aside from the VERSION and PACKAGE macro, which will be
passed via compiler flag if no config.h was generated.

additionally add some `#ifndef` in options.c to reduce dependency on
autoconf by setting them to sensible defaults.

Author: N-R-K

.gitignore

@@ -14,7 +14,6 @@ missing
 src/*.o
 src/.deps
 src/Makefile
-src/config.h
 src/scrot
 src/scrot_config.h
 src/stamp-h1

configure.ac

@@ -5,7 +5,6 @@ AC_INIT([scrot], [1.9],
         [https://github.com/resurrecting-open-source-projects/scrot])
 AC_CONFIG_SRCDIR([src/scrot.c])
 AM_INIT_AUTOMAKE
-AC_CONFIG_HEADERS([src/config.h])
 
 # Checks for programs.
 orig_CFLAGS="${CFLAGS}" # Save CFLAGS before AC_PROG_CC sets them.
@@ -41,8 +40,7 @@ PKG_CHECK_MODULES([IMLIB2], [imlib2])
 AC_ARG_ENABLE([libbsd-feature-test],
     AS_HELP_STRING([--enable-libbsd-feature-test],
         ["Do not configure the program, return true if libbsd is needed"]))
-AC_CHECK_FUNCS([err errx warn warnx],,
-    [LIBBSD_NEEDED=yes])
+AC_CHECK_FUNCS([err errx warn warnx],, [LIBBSD_NEEDED=yes])
 AC_CHECK_HEADERS([sys/queue.h],, [LIBBSD_NEEDED=yes], [ ])
 # libbsd is obligatory on systems that don't have the BSD functions we use.
 # Pass "--enable-libbsd-feature-test" to ./configure, and the configure script

src/options.c

@@ -51,13 +51,19 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <string.h>
 #include <unistd.h>
 
-#include "config.h"
 #include "note.h"
 #include "options.h"
 #include "scrot.h"
 #include "scrot_selection.h"
 #include "util.h"
 
+#ifndef PACKAGE
+    #define PACKAGE "scrot"
+#endif
+#ifndef VERSION
+    #define VERSION "unknown"
+#endif
+
 struct ScrotOptions opt = {
     .quality = 75,
     .compression = 7,