continuation of #109595
pkgconfig was aliased in 2018, however, it remained in
all-packages.nix due to its wide usage. This cleans
up the remaining references to pkgs.pkgsconfig and
moves the entry to aliases.nix.
python3Packages.pkgconfig remained unchanged because
it's the canonical name of the upstream package
on pypi.
On a OSX 10.10 system:
libtool: compile: clang++ -DHAVE_CONFIG_H -I. -I../include/IL -I ./../src-IL/include -I ./../include -fgnu89-inline -msse -msse2 -msse3 -D_THREAD_SAFE -I/nix/store/7n9c36hz9sl2dqvfry8d554l935hq4ma-openexr-2.2.0/include/OpenEXR -I/nix/store/3jxslxa37wmfdnyfj1hckpxl0skscgj0-ilmbase-2.2.0/include/OpenEXR -O3 -c ./../src-IL/src/il_exr.cpp -fno-common -DPIC -o .libs/libIL_la-il_exr.o
In file included from ./../src-IL/src/il_exr.cpp:22:
In file included from ./../src-IL/include/il_exr.h:18:
In file included from /nix/store/7n9c36hz9sl2dqvfry8d554l935hq4ma-openexr-2.2.0/include/OpenEXR/ImfIO.h:49:
In file included from /nix/store/3qsrpjbsmn7w4d18i8zc6a44myiaa516-libc++-3.5.0/include/c++/v1/string:434:
/nix/store/3qsrpjbsmn7w4d18i8zc6a44myiaa516-libc++-3.5.0/include/c++/v1/__config:32:22: error: expected value in expression
#if __LITTLE_ENDIAN__
^
/nix/store/3qsrpjbsmn7w4d18i8zc6a44myiaa516-libc++-3.5.0/include/c++/v1/__config:110:11: fatal error: 'endian.h' file not found
# include <endian.h>
^
2 errors generated.
make[1]: *** [libIL_la-il_exr.lo] Error 1
make[1]: Leaving directory `/private/var/folders/1g/yfm550_10sb76p0z469bq9mr5zsthm/T/nix-build-libdevil-1.7.8.drv-1/devil-1.7.8/lib'
make: *** [all-recursive] Error 1
See http://sourceforge.net/p/resil/tickets/8/
