Content of RPM gammu-devel-1.38.3-54.6.x86_64.rpm :
/usr/include/gammu
/usr/include/gammu/gammu-backup.h
/usr/include/gammu/gammu-bitmap.h
/usr/include/gammu/gammu-calendar.h
/usr/include/gammu/gammu-call.h
/usr/include/gammu/gammu-callback.h
/usr/include/gammu/gammu-category.h
/usr/include/gammu/gammu-config.h
/usr/include/gammu/gammu-datetime.h
/usr/include/gammu/gammu-debug.h
/usr/include/gammu/gammu-error.h
/usr/include/gammu/gammu-file.h
/usr/include/gammu/gammu-info.h
/usr/include/gammu/gammu-inifile.h
/usr/include/gammu/gammu-keys.h
/usr/include/gammu/gammu-limits.h
/usr/include/gammu/gammu-memory.h
/usr/include/gammu/gammu-message.h
/usr/include/gammu/gammu-misc.h
/usr/include/gammu/gammu-nokia.h
/usr/include/gammu/gammu-ringtone.h
/usr/include/gammu/gammu-security.h
/usr/include/gammu/gammu-settings.h
/usr/include/gammu/gammu-smsd.h
/usr/include/gammu/gammu-statemachine.h
/usr/include/gammu/gammu-types.h
/usr/include/gammu/gammu-unicode.h
/usr/include/gammu/gammu-wap.h
/usr/include/gammu/gammu.h
/usr/lib64/libGammu.so
/usr/lib64/libgsmsd.so
/usr/lib64/pkgconfig/gammu-smsd.pc
/usr/lib64/pkgconfig/gammu.pc