MFH: r513712

Make buildable on non-x86 architecture:

- CImg.h assumes signed char, make it signed explicitly.

- -mtune=generic doesn't exist on e.g. powerpc64.

- USES=compiler:c11 is necessary.

PR:		241026
Submitted by:	pkubaj

Approved by:	portmgr (tier-2 blanket)

graphics/cimg/Makefile

@@ -19,19 +19,11 @@ LICENSE_FILE_CeCILL=	${WRKSRC}/Licence_CeCILL_V2-en.txt
 LICENSE_PERMS_CeCILL_C=	dist-mirror dist-sell pkg-mirror pkg-sell auto-accept
 LICENSE_PERMS_CeCILL=	dist-mirror dist-sell pkg-mirror pkg-sell auto-accept
 
-BROKEN_aarch64=		invokes x86 assembler
-BROKEN_armv6=		invokes x86 assembler
-BROKEN_armv7=		invokes x86 assembler
-BROKEN_mips=		invokes x86 assembler
-BROKEN_mips64=		invokes x86 assembler
-BROKEN_sparc64=		invokes x86 assembler
-BROKEN_powerpc64=	invokes x86 assembler
-
 USE_GITHUB=	yes
 GH_ACCOUNT=	dtschump
 GH_PROJECT=	CImg
 
-USES=	xorg
+USES=	compiler:c11 xorg
 
 .if !defined(WITHOUT_LAPACK)
 . if defined(WITH_ATLAS)

graphics/cimg/files/patch-CImg.h

@@ -0,0 +1,11 @@
+--- CImg.h.orig	2019-09-24 20:44:55 UTC
++++ CImg.h
+@@ -6737,7 +6737,7 @@ namespace cimg_library_suffixed {
+     }
+ 
+     //! Return \c true if input character is blank (space, tab, or non-printable character).
+-    inline bool is_blank(const char c) {
++    inline bool is_blank(const signed char c) {
+       return c>=0 && c<=' ';
+     }
+ 

graphics/cimg/files/patch-examples__Makefile

@@ -26,7 +26,7 @@
 +OPT_CFLAGS = # -Ofast - handled by the port CFLAGS
  ifdef IS_GCC
 -OPT_CFLAGS = -Ofast -mtune=generic
-+OPT_CFLAGS = -mtune=generic
++OPT_CFLAGS =
  endif
  ifdef IS_ICPC
  OPT_CFLAGS = -fast