Created attachment 18009 [details]
fix genconf

Hi,

while fixing https://bugs.ghostscript.com/show_bug.cgi?id=701439 it was pointed out to me[1] that the BUILD_PKGCONFIG vs. PKGCONFIG problem was buildroot-specific. To enable the usage of pkg-config during configure all was needed was adding BUILD_PKGCONFIG=/bin/false to the environment of the configure command.

This enables the usage of pkg-config for the first time in buildroot and led to a new problem which I am reporting in this bug report.

Unpatched ghostscript-9.27 causes this build error:

./obj/aux/genconf ./obj/devs.tr -h ./obj/gconfxx.h -p "%s&s&&" -pl "&-l%s&s&&" -pL "&-L%s&s&&" -ol ./obj/ld.tr
Definition not recognized: lbz2 -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib.
make[1]: *** [base/gs.mak:472: obj/ld.tr] Error 1

ghostscript-9.27$ grep lbz2 Makefile
FT_LIBS=-L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -lfreetype -lpng16 -lbz2 -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -lpng16 -lz -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -lz 
FONTCONFIG_LIBS=-L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -lfontconfig -lfreetype -lpng16 -lbz2 -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -lpng16 -lz -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -lz -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -luuid -lexpat 
EXTRALIBS=$(XTRALIBS) -lm  -liconv -lidn -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -ltiff -lm  -rdynamic -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -lfontconfig -lfreetype -lpng16 -lbz2 -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -lpng16 -lz -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -lz -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -luuid -lexpat  -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -lfreetype -lpng16 -lbz2 -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -lpng16 -lz -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -L/home/bernd/buildroot/br4/output/host/bin/../microblazeel-buildroot-linux-uclibc/sysroot/usr/lib -lz   

Using the attached patch fixes the problem.

[1] http://lists.busybox.net/pipermail/buildroot/2019-August/257315.html