libgsl собрана таким образом, что ссылки на символы из libgslcblas оказались не определены: $ nm -D /usr/lib/libgsl.so | grep -F cblas_dsdot U cblas_dsdot Из-за этого у клиентов, использующих pkg-config --libs gsl, возникают проблемы: i586-alt-linux-gcc -DHAVE_CONFIG_H -I. -I. -I. -I../gnugetopt -I../trio -I- -I. -I. -I../gsl/specfunc -I.. -DBOGOFILTER -pipe -Wall -O2 -march=i586 -mcpu=i686 -Wpointer-arith -ggdb -Wall -W -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Waggregate-return -Wmissing-declarations -Wmissing-format-attribute -Wnested-externs -fno-common -Wchar-subscripts -Wcomment -Wimplicit -Wsequence-point -Wreturn-type -Wno-system-headers -Wformat -c bogofilter.c i586-alt-linux-gcc -DHAVE_CONFIG_H -I. -I. -I. -I../gnugetopt -I../trio -I- -I. -I. -I../gsl/specfunc -I.. -DBOGOFILTER -pipe -Wall -O2 -march=i586 -mcpu=i686 -Wpointer-arith -ggdb -Wall -W -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Waggregate-return -Wmissing-declarations -Wmissing-format-attribute -Wnested-externs -fno-common -Wchar-subscripts -Wcomment -Wimplicit -Wsequence-point -Wreturn-type -Wno-system-headers -Wformat -c main.c i586-alt-linux-gcc -DBOGOFILTER -pipe -Wall -O2 -march=i586 -mcpu=i686 -Wpointer-arith -ggdb -Wall -W -Wstrict-prototypes -Wmissing-prototypes -Wshadow -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Waggregate-return -Wmissing-declarations -Wmissing-format-attribute -Wnested-externs -fno-common -Wchar-subscripts -Wcomment -Wimplicit -Wsequence-point -Wreturn-type -Wno-system-headers -Wformat -o bogofilter bogofilter.o main.o libbogofilter.a /usr/lib/libdb.so -lgsl -lgslcblas -lm -lm /usr/lib/gcc/i586-alt-linux/3.4.5/../../../libgsl.so: undefined reference to `cblas_dsdot'
cblas добавлен в линковку