Rename qr_utils.f90 to qr_utils.F90

It contains preprocessor directives which produce warnings or errors
otherwise.

Makefile.am

@@ -10,7 +10,7 @@ lib_LTLIBRARIES = libelpa@SUFFIX@.la
 libelpa@SUFFIX@_la_LINK = $(FCLINK) $(AM_LDFLAGS) -version-info $(ELPA_SO_VERSION) -lstdc++
 
 libelpa@SUFFIX@_la_SOURCES = src/elpa1.F90 src/elpa2.F90
-libelpa@SUFFIX@_la_SOURCES += src/elpa_qr/qr_utils.f90 \
+libelpa@SUFFIX@_la_SOURCES += src/elpa_qr/qr_utils.F90 \
                                src/elpa_qr/elpa_qrkernels.f90 \
                                src/elpa_qr/elpa_pdlarfb.f90 \
                                src/elpa_qr/elpa_pdgeqrf.f90

Makefile.in

@@ -171,7 +171,7 @@ am__installdirs = "$(DESTDIR)$(libdir)" "$(DESTDIR)$(bindir)" \
 LTLIBRARIES = $(lib_LTLIBRARIES)
 libelpa@SUFFIX@_la_LIBADD =
 am__libelpa@SUFFIX@_la_SOURCES_DIST = src/elpa1.F90 src/elpa2.F90 \
-	src/elpa_qr/qr_utils.f90 src/elpa_qr/elpa_qrkernels.f90 \
+	src/elpa_qr/qr_utils.F90 src/elpa_qr/elpa_qrkernels.f90 \
 	src/elpa_qr/elpa_pdlarfb.f90 src/elpa_qr/elpa_pdgeqrf.f90 \
 	src/timer.F90 src/ftimings/ftimings.F90 \
 	src/ftimings/ftimings_type.F90 src/ftimings/ftimings_value.F90 \
@@ -798,7 +798,7 @@ AM_LDFLAGS = $(SCALAPACK_LDFLAGS)
 lib_LTLIBRARIES = libelpa@SUFFIX@.la
 libelpa@SUFFIX@_la_LINK = $(FCLINK) $(AM_LDFLAGS) -version-info $(ELPA_SO_VERSION) -lstdc++
 libelpa@SUFFIX@_la_SOURCES = src/elpa1.F90 src/elpa2.F90 \
-	src/elpa_qr/qr_utils.f90 src/elpa_qr/elpa_qrkernels.f90 \
+	src/elpa_qr/qr_utils.F90 src/elpa_qr/elpa_qrkernels.f90 \
 	src/elpa_qr/elpa_pdlarfb.f90 src/elpa_qr/elpa_pdgeqrf.f90 \
 	$(am__append_1) $(am__append_2) $(am__append_3) \
 	$(am__append_4) $(am__append_5) $(am__append_6) \