build script: add function to create .pc file

build.py

@@ -197,6 +197,37 @@ class Target(BaseTarget):
         assert pcfile
         return line
 
+    def write_pc_file(self, filename=None, name=None, description=None, version='',
+                      requires='', requires_private='', libs='', libs_private='', cflags=''):
+        pkgconfig_path = self.prefix + '/lib/pkgconfig/'
+        os.makedirs(pkgconfig_path, exist_ok=True)
+
+        if not filename:
+            filename = self.name + '.pc'
+        if not name:
+            name = self.name
+        if not description:
+            description = self.name
+        if not libs:
+            libs = '-l' + self.name
+
+        pc_content = f'''prefix=
+exec_prefix=${{prefix}}
+libdir=${{exec_prefix}}/lib
+includedir=${{prefix}}/include
+
+Name: {name}
+Description: {description}
+Version: {version}
+Requires: {requires}
+Requires.private: {requires_private}
+Libs: -L${{libdir}} {libs}
+Libs.private: {libs_private}
+Cflags: -I${{includedir}} {cflags}
+'''
+        with open(pkgconfig_path + filename, 'w') as f:
+            f.write(pc_content)
+
 
 class MakeTarget(Target):
     def __init__(self, name=None):
@@ -686,23 +717,7 @@ class Bzip2Target(MakeTarget):
         self.options['PREFIX'] = self.prefix
         self.install(builder, self.options)
 
-        # Write .pc file
+        self.write_pc_file(description='bzip2 compression library', version='1.0.8', libs='-lbz2')
-        pkgconfig_path = self.prefix + '/lib/pkgconfig/'
-        os.makedirs(pkgconfig_path, exist_ok=True)
-
-        pc_content = '''prefix=
-exec_prefix=${prefix}
-libdir=${exec_prefix}/lib
-includedir=${prefix}/include
-
-Name: bzip2
-Description: bzip2 compression library
-Version: 1.0.8
-Libs: -L${libdir} -lbz2
-Cflags: -I${includedir}
-'''
-        with open(pkgconfig_path + 'bzip2.pc', 'w') as f:
-            f.write(pc_content)
 
 
 class DumbTarget(CMakeStaticDependencyTarget):