Correctly detect qmake command.

qmake may be named qmake-qt5 on some distribution.

kiwixbuild/buildenv.py

@@ -26,7 +26,10 @@ class PlatformNeutralEnv:
             sys.exit("ERROR: ninja command not found.")
         self.meson_command = self._detect_meson()
         if not self.meson_command:
-            sys.exit("ERROR: meson command not found")
+            sys.exit("ERROR: meson command not found.")
+        self.qmake_command = self._detect_qmake()
+        if not self.qmake_command:
+            print("WARNING: qmake command not found.", file=sys.stderr)
         self.mesontest_command = "{} test".format(self.meson_command)
 
     def detect_platform(self):
@@ -65,6 +68,9 @@ class PlatformNeutralEnv:
     def _detect_meson(self):
         return self._detect_binary('meson.py', 'meson')
 
+    def _detect_qmake(self):
+        return self._detect_binary('qmake-qt5', 'qmake')
+
 
 class BuildEnv:
     def __init__(self, platformInfo):

kiwixbuild/dependencies/base.py

@@ -448,11 +448,12 @@ class QMakeBuilder(MakeBuilder):
     def _configure(self, context):
         context.try_skip(self.build_path)
         cross_option = ""
-        command = ("qmake {configure_option}"
+        command = ("{command} {configure_option}"
                    " {env_option}"
                    " {source_path}"
                    " {cross_option}")
         command = command.format(
+            command = neutralEnv('qmake_command'),
             configure_option=self.configure_option,
             env_option=self.env_option,
             source_path=self.source_path,