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<.> /tmp/math/igraph/work/.gcc/bin/gcc -fcommon -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -fopenmp -Wl,-zrelro -L/tmp/math/igraph/work/.buildlink/lib -Wl,-rpath,/usr/pkg/lib -v CMakeFiles/cmTC_33f86.dir/OpenMPTryFlag.c.o -o cmTC_33f86 -pie
[*] c++ -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -fopenmp -std=gnu++14 -o CMakeFiles/cmTC_022bf.dir/OpenMPTryFlag.cpp.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-Ixk1k3/OpenMPTryFlag.cpp
<.> /tmp/math/igraph/work/.gcc/bin/g++ -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -fopenmp -std=gnu++14 -o CMakeFiles/cmTC_022bf.dir/OpenMPTryFlag.cpp.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-Ixk1k3/OpenMPTryFlag.cpp
[*] c++ -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -fopenmp -Wl,-zrelro -L/usr/pkg/lib -Wl,-R/usr/pkg/lib -L/usr/lib -Wl,-R/usr/lib -v CMakeFiles/cmTC_022bf.dir/OpenMPTryFlag.cpp.o -o cmTC_022bf
<.> /tmp/math/igraph/work/.gcc/bin/g++ -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -fopenmp -Wl,-zrelro -L/tmp/math/igraph/work/.buildlink/lib -Wl,-rpath,/usr/pkg/lib -v CMakeFiles/cmTC_022bf.dir/OpenMPTryFlag.cpp.o -o cmTC_022bf -pie
[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -fopenmp -std=gnu99 -o CMakeFiles/cmTC_392cc.dir/OpenMPCheckVersion.c.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-tfdbZJ/OpenMPCheckVersion.c
<.> /tmp/math/igraph/work/.gcc/bin/gcc -fcommon -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -fopenmp -std=gnu99 -o CMakeFiles/cmTC_392cc.dir/OpenMPCheckVersion.c.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-tfdbZJ/OpenMPCheckVersion.c
[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -fopenmp -Wl,-zrelro -L/usr/pkg/lib -Wl,-R/usr/pkg/lib -L/usr/lib -Wl,-R/usr/lib CMakeFiles/cmTC_392cc.dir/OpenMPCheckVersion.c.o -o cmTC_392cc
<.> /tmp/math/igraph/work/.gcc/bin/gcc -fcommon -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -fopenmp -Wl,-zrelro -L/tmp/math/igraph/work/.buildlink/lib -Wl,-rpath,/usr/pkg/lib CMakeFiles/cmTC_392cc.dir/OpenMPCheckVersion.c.o -o cmTC_392cc -pie
[*] c++ -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -fopenmp -std=gnu++14 -o CMakeFiles/cmTC_51582.dir/OpenMPCheckVersion.cpp.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-PK6Lt8/OpenMPCheckVersion.cpp
<.> /tmp/math/igraph/work/.gcc/bin/g++ -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -fopenmp -std=gnu++14 -o CMakeFiles/cmTC_51582.dir/OpenMPCheckVersion.cpp.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-PK6Lt8/OpenMPCheckVersion.cpp
[*] c++ -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -fopenmp -Wl,-zrelro -L/usr/pkg/lib -Wl,-R/usr/pkg/lib -L/usr/lib -Wl,-R/usr/lib CMakeFiles/cmTC_51582.dir/OpenMPCheckVersion.cpp.o -o cmTC_51582
<.> /tmp/math/igraph/work/.gcc/bin/g++ -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -fopenmp -Wl,-zrelro -L/tmp/math/igraph/work/.buildlink/lib -Wl,-rpath,/usr/pkg/lib CMakeFiles/cmTC_51582.dir/OpenMPCheckVersion.cpp.o -o cmTC_51582 -pie
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --version
<.> set args --version; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --print-errors --short-errors --exists libxml-2.0
<.> set args --print-errors --short-errors --exists libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --modversion libxml-2.0
<.> set args --modversion libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --variable=prefix libxml-2.0
<.> set args --variable=prefix libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --variable=includedir libxml-2.0
<.> set args --variable=includedir libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --variable=libdir libxml-2.0
<.> set args --variable=libdir libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --libs-only-l libxml-2.0
<.> set args --libs-only-l libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --static --libs-only-l libxml-2.0
<.> set args --static --libs-only-l libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --libs-only-L libxml-2.0
<.> set args --libs-only-L libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --static --libs-only-L libxml-2.0
<.> set args --static --libs-only-L libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --libs libxml-2.0
<.> set args --libs libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --static --libs libxml-2.0
<.> set args --static --libs libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --libs-only-other libxml-2.0
<.> set args --libs-only-other libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --static --libs-only-other libxml-2.0
<.> set args --static --libs-only-other libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --cflags-only-I libxml-2.0
<.> set args --cflags-only-I libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --static --cflags-only-I libxml-2.0
<.> set args --static --cflags-only-I libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --cflags libxml-2.0
<.> set args --cflags libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --static --cflags libxml-2.0
<.> set args --static --cflags libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --cflags-only-other libxml-2.0
<.> set args --cflags-only-other libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] /tmp/math/igraph/work/.tools/bin/pkg-config --static --cflags-only-other libxml-2.0
<.> set args --static --cflags-only-other libxml-2.0; shift; PKG_CONFIG_LIBDIR=/tmp/math/igraph/work/.buildlink/lib/pkgconfig:/tmp/math/igraph/work/.buildlink/share/pkgconfig /usr/pkg/bin/pkg-config  "$@"
[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -std=gnu99 -o CMakeFiles/cmTC_a9ffb.dir/CheckSymbolExists.c.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-M37gsU/CheckSymbolExists.c
<.> /tmp/math/igraph/work/.gcc/bin/gcc -fcommon -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -std=gnu99 -o CMakeFiles/cmTC_a9ffb.dir/CheckSymbolExists.c.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-M37gsU/CheckSymbolExists.c
[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -Wl,-zrelro -L/usr/pkg/lib -Wl,-R/usr/pkg/lib -L/usr/lib -Wl,-R/usr/lib CMakeFiles/cmTC_a9ffb.dir/CheckSymbolExists.c.o -o cmTC_a9ffb
<.> /tmp/math/igraph/work/.gcc/bin/gcc -fcommon -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -Wl,-zrelro -L/tmp/math/igraph/work/.buildlink/lib -Wl,-rpath,/usr/pkg/lib CMakeFiles/cmTC_a9ffb.dir/CheckSymbolExists.c.o -o cmTC_a9ffb -pie
[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -std=gnu99 -o CMakeFiles/cmTC_ad936.dir/CheckSymbolExists.c.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-8RjV8F/CheckSymbolExists.c
<.> /tmp/math/igraph/work/.gcc/bin/gcc -fcommon -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -std=gnu99 -o CMakeFiles/cmTC_ad936.dir/CheckSymbolExists.c.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-8RjV8F/CheckSymbolExists.c
[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -Wl,-zrelro -L/usr/pkg/lib -Wl,-R/usr/pkg/lib -L/usr/lib -Wl,-R/usr/lib CMakeFiles/cmTC_ad936.dir/CheckSymbolExists.c.o -o cmTC_ad936 -lm
<.> /tmp/math/igraph/work/.gcc/bin/gcc -fcommon -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -Wl,-zrelro -L/tmp/math/igraph/work/.buildlink/lib -Wl,-rpath,/usr/pkg/lib CMakeFiles/cmTC_ad936.dir/CheckSymbolExists.c.o -o cmTC_ad936 -lm -pie
[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -std=gnu99 -o CMakeFiles/cmTC_df8c9.dir/CheckSymbolExists.c.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-IfcDGh/CheckSymbolExists.c
<.> /tmp/math/igraph/work/.gcc/bin/gcc -fcommon -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -std=gnu99 -o CMakeFiles/cmTC_df8c9.dir/CheckSymbolExists.c.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-IfcDGh/CheckSymbolExists.c
[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -Wl,-zrelro -L/usr/pkg/lib -Wl,-R/usr/pkg/lib -L/usr/lib -Wl,-R/usr/lib CMakeFiles/cmTC_df8c9.dir/CheckSymbolExists.c.o -o cmTC_df8c9 -lm
<.> /tmp/math/igraph/work/.gcc/bin/gcc -fcommon -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -Wl,-zrelro -L/tmp/math/igraph/work/.buildlink/lib -Wl,-rpath,/usr/pkg/lib CMakeFiles/cmTC_df8c9.dir/CheckSymbolExists.c.o -o cmTC_df8c9 -lm -pie
[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -std=gnu99 -o CMakeFiles/cmTC_69e1b.dir/CheckSymbolExists.c.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-3W5Btb/CheckSymbolExists.c
<.> /tmp/math/igraph/work/.gcc/bin/gcc -fcommon -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -std=gnu99 -o CMakeFiles/cmTC_69e1b.dir/CheckSymbolExists.c.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-3W5Btb/CheckSymbolExists.c
[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -Wl,-zrelro -L/usr/pkg/lib -Wl,-R/usr/pkg/lib -L/usr/lib -Wl,-R/usr/lib CMakeFiles/cmTC_69e1b.dir/CheckSymbolExists.c.o -o cmTC_69e1b -lm
<.> /tmp/math/igraph/work/.gcc/bin/gcc -fcommon -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -Wl,-zrelro -L/tmp/math/igraph/work/.buildlink/lib -Wl,-rpath,/usr/pkg/lib CMakeFiles/cmTC_69e1b.dir/CheckSymbolExists.c.o -o cmTC_69e1b -lm -pie
[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -std=gnu99 -o CMakeFiles/cmTC_94737.dir/CheckSymbolExists.c.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-AWjfL5/CheckSymbolExists.c
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[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -std=gnu99 -o CMakeFiles/cmTC_4ff0d.dir/CheckSymbolExists.c.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-gPpXmQ/CheckSymbolExists.c
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[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -std=gnu99 -o CMakeFiles/cmTC_72ebe.dir/CheckSymbolExists.c.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-v7wI0P/CheckSymbolExists.c
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[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -Wl,-zrelro -L/usr/pkg/lib -Wl,-R/usr/pkg/lib -L/usr/lib -Wl,-R/usr/lib CMakeFiles/cmTC_72ebe.dir/CheckSymbolExists.c.o -o cmTC_72ebe -lm
<.> /tmp/math/igraph/work/.gcc/bin/gcc -fcommon -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wl,-zrelro -fPIC -O2 -I/tmp/math/igraph/work/.buildlink/include -Dz_off_t=long -I/tmp/math/igraph/work/.buildlink/include/libxml2 -Wl,-zrelro -L/tmp/math/igraph/work/.buildlink/lib -Wl,-rpath,/usr/pkg/lib CMakeFiles/cmTC_72ebe.dir/CheckSymbolExists.c.o -o cmTC_72ebe -lm -pie
[*] cc -O2 -I/usr/pkg/include -Dz_off_t=long -I/usr/include -I/usr/pkg/include/libxml2 -std=gnu99 -o CMakeFiles/cmTC_e3417.dir/CheckSymbolExists.c.o -c /tmp/math/igraph/work/igraph-1.0.0/build/CMakeFiles/CMakeScratch/TryCompile-NYcOyO/CheckSymbolExists.c
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