FreeBSD/ports 7723e7d (r490610)devel/llvm40 Makefile, devel/llvm40/files llvm-wrapper.sh.in

More throughly disable assertions.  This works around USES=cmake
overriding the CFLAGS used to build. [0]

devel/llvm[45]0: Fix build on GCC systems. [1]

devel/llvm[456]: Avoid realpath calls where possible in the wrapper
script. [2]

PR:             233506 [0], 234647 [1], 234937 [1]
Submitted by:   greg at unrelenting.technology [0], pkubaj at anongoth.pl [1],
                bdrewery [2]
Differential Revision:  https://reviews.freebsd.org/D17990
DeltaFile
+12-3devel/llvm50/Makefile
+12-3devel/llvm40/Makefile
+7-3devel/llvm60/Makefile
+6-1devel/llvm70/Makefile
+2-1devel/llvm50/files/llvm-wrapper.sh.in
+2-1devel/llvm40/files/llvm-wrapper.sh.in
+2-1devel/llvm60/files/llvm-wrapper.sh.in
+43-137 files

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