Fix gap > libgap

Author: tobiasdiez

src/meson.build

@@ -114,7 +114,7 @@ endif
 mpc = cc.find_library('mpc')
 mpfi = cc.find_library('mpfi')
 
-gap = dependency('gap', version: '>=4.13.0', required: false)
+gap = dependency('libgap', version: '>=4.13.0', required: false)
 if not gap.found()
   # Fallback in case pkg-config info is not available
   # Test for common.h header that was added in 4.12 as a indirect version check