From ce3db105b0aeb90ecc955ccbeef883d83c726681 Mon Sep 17 00:00:00 2001
From: Juha Sointusalo <juha.sointusalo@gmail.com>
Date: Fri, 22 Mar 2019 22:12:04 +0200
Subject: [PATCH] build: remove Fortran checks

While science apps may use Fortran BOINC itself doesn't use it making
the checks useless.

Removing the checks reduces verbosity of configure a little bit making
its output more accessible.
---
 configure.ac                  |  1 -
 m4/boinc_check_flags.m4       | 22 ----------------------
 m4/boinc_set_compile_flags.m4 | 31 -------------------------------
 3 files changed, 54 deletions(-)

diff --git a/configure.ac b/configure.ac
index 503b27bd13..eeef08f094 100644
--- a/configure.ac
+++ b/configure.ac
@@ -62,7 +62,6 @@ dnl Workaround for autoconf >= 2.65 backwards incompatibility
 m4_pattern_allow([AC_PROG_OBJCXX])
 m4_ifdef([AC_PROG_OBJCXX],[AC_PROG_OBJCXX],)
 dnl ------
-AC_PROG_F77
 AC_PROG_CPP
 AC_PROG_MAKE_SET
 SAH_LINKS
diff --git a/m4/boinc_check_flags.m4 b/m4/boinc_check_flags.m4
index 458bbf55bb..0d123d6b4e 100644
--- a/m4/boinc_check_flags.m4
+++ b/m4/boinc_check_flags.m4
@@ -47,28 +47,6 @@ AC_DEFUN([BOINC_CHECK_CXXFLAG],[
   AC_LANG_POP(C++)
 ])
 
-AC_DEFUN([BOINC_CHECK_FFLAG],[
-  AC_LANG_PUSH(Fortran 77)
-  sv_flags="${FFLAGS}"
-  AC_MSG_CHECKING(if f77 compiler supports $1)
-  FFLAGS="${FFLAGS} $1"
-  AC_LINK_IFELSE([
-    AC_LANG_PROGRAM([],
-    [      write(*,*) 'hello' ])],
-    [
-      AC_MSG_RESULT(yes)
-      $2
-    ],
-    [ 
-      AC_MSG_RESULT(no)
-      FFLAGS="${sv_flags}"
-      $3
-    ]
-  )
-  AC_LANG_POP(Fortran 77)
-])
-
-
 AC_DEFUN([BOINC_CHECK_LDFLAG],[
   AC_LANG_PUSH(C)
   sv_flags="${LDFLAGS}"
diff --git a/m4/boinc_set_compile_flags.m4 b/m4/boinc_set_compile_flags.m4
index 08974deb38..1e2e0cef73 100644
--- a/m4/boinc_set_compile_flags.m4
+++ b/m4/boinc_set_compile_flags.m4
@@ -24,7 +24,6 @@ dnl enable compiler warnings
 if test x${ac_cv_c_compiler_gnu} = xyes ; then
     BOINC_CHECK_CFLAG(-Wall)
     BOINC_CHECK_CXXFLAG(-Wall)
-    BOINC_CHECK_FFLAG(-Wall)
 fi
 
 dnl enable debug mode on all components using standard debug flags
@@ -32,7 +31,6 @@ dnl enable debug mode on all components using standard debug flags
 if test x${enable_debug} = xyes ; then
   BOINC_CHECK_CFLAG(-g)
   BOINC_CHECK_CXXFLAG(-g)
-  BOINC_CHECK_FFLAG(-g)
   BOINC_CHECK_LDFLAG(-g)
   CXXFLAGS="$CXXFLAGS -DDEBUG -D_DEBUG"
   CFLAGS="$CFLAGS -DDEBUG -D_DEBUG"
@@ -51,12 +49,6 @@ if test x${enable_optimize} = xyes ; then
     BOINC_CHECK_CXXFLAG(-fast)
   fi
   BOINC_CHECK_CXXFLAG(-O3)
-  if test x${ac_cv_f77_compiler_gnu} = xyes ; then
-    BOINC_CHECK_FFLAG(-ffast-math)
-  else
-    BOINC_CHECK_FFLAG(-fast)
-  fi
-  BOINC_CHECK_FFLAG(-O3)
 fi  
 
 if test x${enable_generic_processor} = xyes ; then
@@ -66,8 +58,6 @@ if test x${enable_generic_processor} = xyes ; then
 	 BOINC_CHECK_CFLAG(-mtune=prescott)
          BOINC_CHECK_CXXFLAG(-march=pentium4)
 	 BOINC_CHECK_CXXFLAG(-mtune=prescott)
-         BOINC_CHECK_FFLAG(-march=pentium4)
-	 BOINC_CHECK_FFLAG(-mtune=prescott)
 	 ;;
      i*86-*)  
          dnl gcc
@@ -87,13 +77,6 @@ if test x${enable_generic_processor} = xyes ; then
            BOINC_CHECK_CXXFLAG(-xarch=386)
 	   BOINC_CHECK_CXXFLAG(-3)
 	 fi
-	 if test x${ac_cv_f77_compiler_gnu} = xyes ; then
-           BOINC_CHECK_FFLAG(-march=i486)
-           BOINC_CHECK_FFLAG(-mtune=generic)
-         else
-           BOINC_CHECK_FFLAG(-xarch=386)
-	   BOINC_CHECK_FFLAG(-3)
-	 fi
 	 ;;
      x86_64-*|amd64-*)  
          dnl gcc
@@ -111,13 +94,6 @@ if test x${enable_generic_processor} = xyes ; then
          else
            BOINC_CHECK_CXXFLAG(-xarch=amd64)
          fi
-	 if test x${ac_cv_f77_compiler_gnu} = xyes ; then
-           BOINC_CHECK_FFLAG(-msse2)   
-           BOINC_CHECK_FFLAG(-march=opteron)   
-           BOINC_CHECK_FFLAG(-mtune=generic)   
-         else
-           BOINC_CHECK_FFLAG(-xarch=amd64)
-         fi
 	 ;;
      sparc-*)
          dnl gcc
@@ -136,13 +112,6 @@ if test x${enable_generic_processor} = xyes ; then
          else
            BOINC_CHECK_CXXFLAG(-xarch=v8)   
          fi
-	 if test x${ac_cv_f77_compiler_gnu} = xyes ; then
-           BOINC_CHECK_FFLAG(-march=v8)   
-           BOINC_CHECK_FFLAG(-mcpu=v8)   
-           BOINC_CHECK_FFLAG(-mtune=ultrasparc)   
-         else
-           BOINC_CHECK_FFLAG(-xarch=v8)   
-         fi
          ;;
      *)
          ;;