/usr/lib/x86_64-linux-gnu/pkgconfig/speexdsp.pc is in libspeexdsp-dev 1.2~rc1.2-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | # libspeexdsp pkg-config source file
prefix=/usr
exec_prefix=${prefix}
libdir=${prefix}/lib/x86_64-linux-gnu
includedir=${prefix}/include
Name: speexdsp
Description: Speexdsp is a speech processing library that goes along with the Speex codec
Version: 1.2rc1
Requires:
Conflicts:
Libs: -L${libdir} -lspeexdsp
Libs.private: -lm
Cflags: -I${includedir}
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