* font.c, gtkutil.c: Include <float.h>.

src/ChangeLog

@@ -39,7 +39,8 @@
 	* filelock.c (lock_file_1, lock_file): Don't blindly alloca long name;
 	use SAFE_ALLOCA instead.  Use esprintf to avoid int-overflow issues.
 
-	* font.c (font_unparse_xlfd): Don't blindly alloca long strings.
+	* font.c: Include <float.h>, for DBL_MAX_10_EXP.
+	(font_unparse_xlfd): Don't blindly alloca long strings.
 	Don't assume XINT result fits in int, or that XFLOAT_DATA * 10
 	fits in int, when using sprintf.  Use single snprintf to count
 	length of string rather than counting it via multiple sprintfs;
@@ -62,7 +63,8 @@
 	use SAFE_ALLOCA.  Use esprintf, not sprintf, in case result does
 	not fit in int.
 
-	* gtkutil.c (xg_check_special_colors, xg_set_geometry):
+	* gtkutil.c: Include <float.h>, for DBL_MAX_10_EXP.
+	(xg_check_special_colors, xg_set_geometry):
 	Make sprintf buffers a bit bigger, to avoid potential buffer overrun.
 
 	* lread.c (dir_warning): Don't blindly alloca buffer; use SAFE_ALLOCA.

src/font.c

@@ -21,6 +21,7 @@ You should have received a copy of the GNU General Public License
 along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include <config.h>
+#include <float.h>
 #include <stdio.h>
 #include <ctype.h>
 #include <setjmp.h>

src/gtkutil.c

@@ -20,6 +20,7 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include <config.h>
 
 #ifdef USE_GTK
+#include <float.h>
 #include <signal.h>
 #include <stdio.h>
 #include <setjmp.h>