[PATCH] sphinx: more build fixing if sphinx-build is missing

[Stephan Bergmann via Gcc-patches]

...similar to 1f9c79367e136e0ca5b775562e6111e1a0d0046f "sphinx: fix 
building if
sphinx-build is missing"

gcc/ChangeLog:
        * fortran/Make-lang.in: Build info pages conditionally.
---
 gcc/fortran/Make-lang.in | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gcc/fortran/Make-lang.in b/gcc/fortran/Make-lang.in
index 48acbed1754..852b6f3327f 100644
--- a/gcc/fortran/Make-lang.in
+++ b/gcc/fortran/Make-lang.in
@@ -161,7 +161,9 @@ fortran.install-pdf: $(F95_PDFFILES)
 F95_MANFILES = doc/gfortran/man/man/gfortran.1

 doc/gfortran/man/man/gfortran.1: $(SPHINX_FILES)
-	+ make -C $(srcdir)/../doc man 
SOURCEDIR=$(abs_srcdir)/fortran/doc/gfortran 
BUILDDIR=$(objdir)/doc/gfortran/man SPHINXBUILD=$(SPHINX_BUILD)
+       + if [ x$(HAS_SPHINX_BUILD) = xhas-sphinx-build ]; then \
+	  make -C $(srcdir)/../doc man 
SOURCEDIR=$(abs_srcdir)/fortran/doc/gfortran 
BUILDDIR=$(objdir)/doc/gfortran/man SPHINXBUILD=$(SPHINX_BUILD) \
+       else true; fi

 fortran.man: $(F95_MANFILES)

--
2.38.1