Fix python_includespec on Windows at configure time

By converting to using forward slashes at configure time we avoid
having to repeat the logic anywhere that this is needed, such as
in transforms modules for plpython.

3 files changed, 8 insertions, 4 deletions

diff --git a/config/python.m4 b/config/python.m4
index c8f784ed47d..de346fb53aa 100644
--- a/config/python.m4
+++ b/config/python.m4
@@ -44,6 +44,9 @@ if a == b:
     print(a)
 else:
     print(a + ' ' + b)"`
+if test "$PORTNAME" = win32 ; then
+    python_includespec=`echo $python_includespec | sed 's,[\],/,g'`
+fi
 AC_MSG_RESULT([$python_includespec])
 
 AC_SUBST(python_majorversion)[]dnl
diff --git a/configure b/configure
index 6691d7382c4..191e8f03263 100755
--- a/configure
+++ b/configure
@@ -7487,6 +7487,9 @@ if a == b:
     print(a)
 else:
     print(a + ' ' + b)"`
+if test "$PORTNAME" = win32 ; then
+    python_includespec=`echo $python_includespec | sed 's,\,/,g'`
+fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $python_includespec" >&5
 $as_echo "$python_includespec" >&6; }
 
diff --git a/src/pl/plpython/Makefile b/src/pl/plpython/Makefile
index 4c9d1461473..39cfb654fb2 100644
--- a/src/pl/plpython/Makefile
+++ b/src/pl/plpython/Makefile
@@ -5,14 +5,12 @@ top_builddir = ../../..
 include $(top_builddir)/src/Makefile.global
 
 
-# Windows needs to convert backslashed paths to normal slashes,
-# and we have to remove -lpython from the link since we are building our own
+# On Windows we have to remove -lpython from the link since we are
+# building our own
 ifeq ($(PORTNAME), win32)
-python_includespec := $(subst \,/,$(python_includespec))
 override python_libspec =
 endif
 
-
 override CPPFLAGS := -I. -I$(srcdir) $(python_includespec) $(CPPFLAGS)
 
 rpathdir = $(python_libdir)