python: Recognize python-X.Y-embed flavor introduced with Python 3.8 in Debian

The non-"embed" .pc file does not include linker instructions. See
Debian bug #948017

Gbp-Pq: Name 0017-python-Recognize-python-X.Y-embed-flavor-introduced-.patch

diff --git a/m4/guestfs-python.m4 b/m4/guestfs-python.m4
index 7d4c991bb2eaacdea2b92eac107d090ea86d3e43..d4fc710eb2c73bdd95007a25d264c6167170ce88 100644 (file)
--- a/m4/guestfs-python.m4
+++ b/m4/guestfs-python.m4
@@ -33,20 +33,27 @@ AS_IF([test "x$enable_python" != "xno"],[
         PYTHON_VERSION_MINOR=`$PYTHON -c "import sys; print (sys.version_info@<:@1@:>@)"`
         PYTHON_VERSION="$PYTHON_VERSION_MAJOR.$PYTHON_VERSION_MINOR"
        AC_MSG_RESULT([$PYTHON_VERSION])
-        # Debian: python-2.7.pc, python-3.2.pc
-        PKG_CHECK_MODULES([PYTHON], [python-"$PYTHON_VERSION"],[
+        # Debian: python-2.7.pc, python-3.2.pc. But also: python-3.8-embed.pc
+        PKG_CHECK_MODULES([PYTHON], [python-"$PYTHON_VERSION"-embed],[
             AC_SUBST([PYTHON_CFLAGS])
             AC_SUBST([PYTHON_LIBS])
             AC_SUBST([PYTHON_VERSION])
             AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time])
         ],[
-            PKG_CHECK_MODULES([PYTHON], [python],[
+            PKG_CHECK_MODULES([PYTHON], [python-"$PYTHON_VERSION"],[
                 AC_SUBST([PYTHON_CFLAGS])
                 AC_SUBST([PYTHON_LIBS])
                 AC_SUBST([PYTHON_VERSION])
                 AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time])
             ],[
-                AC_MSG_WARN([python $PYTHON_VERSION not found])
+                PKG_CHECK_MODULES([PYTHON], [python],[
+                    AC_SUBST([PYTHON_CFLAGS])
+                    AC_SUBST([PYTHON_LIBS])
+                    AC_SUBST([PYTHON_VERSION])
+                    AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time])
+                ],[
+                    AC_MSG_WARN([python $PYTHON_VERSION not found])
+                ])
             ])
         ])
         AC_MSG_CHECKING([Python prefix])