BuildSystem: For consistency, avoid double-checking via if clauses.

In the script ./configure, AST_EXT_LIB_CHECK and AST_PKG_CONFIG_CHECK first test
whether parameter 1 was already found. Consequently, an if-test on PBX_ just a
line below is redundant, if exactly the same parameter 1 is used again.

No performance gain is expected by this change. However, because this strategy
is used all over in ./configure except for two places, this change aims to
create more consistency: Only do something different if there is a reason to do
so.

Change-Id: I4a6f48127b7af3a48168c917e888be1f70625027

diff --git a/configure b/configure
index 3442d5724808a281b919a40a63aec368cead2469..164c90309b7666aa723f8e6290ebcd4cd2ab5c1a 100755 (executable)
--- a/configure
+++ b/configure
@@ -19447,9 +19447,7 @@ _ACEOF
 fi
 
 
-
-if test "${PBX_BFD}" = "0"; then
-  # Fedora/RedHat/CentOS require extra libraries
+# Fedora/RedHat/CentOS require extra libraries
 
 if test "x${PBX_BFD}" != "x1" -a "${USE_BFD}" != "no"; then
    pbxlibdir=""
@@ -19464,9 +19462,9 @@ if test "x${PBX_BFD}" != "x1" -a "${USE_BFD}" != "no"; then
 
       ast_ext_lib_check_save_CFLAGS="${CFLAGS}"
       CFLAGS="${CFLAGS} "
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for bfd_check_format in -lbfd" >&5
-$as_echo_n "checking for bfd_check_format in -lbfd... " >&6; }
-if ${ac_cv_lib_bfd_bfd_check_format+:} false; then :
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for bfd_openr in -lbfd" >&5
+$as_echo_n "checking for bfd_openr in -lbfd... " >&6; }
+if ${ac_cv_lib_bfd_bfd_openr+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -19480,27 +19478,27 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 #ifdef __cplusplus
 extern "C"
 #endif
-char bfd_check_format ();
+char bfd_openr ();
 int
 main ()
 {
-return bfd_check_format ();
+return bfd_openr ();
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_bfd_bfd_check_format=yes
+  ac_cv_lib_bfd_bfd_openr=yes
 else
-  ac_cv_lib_bfd_bfd_check_format=no
+  ac_cv_lib_bfd_bfd_openr=no
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_bfd_bfd_check_format" >&5
-$as_echo "$ac_cv_lib_bfd_bfd_check_format" >&6; }
-if test "x$ac_cv_lib_bfd_bfd_check_format" = xyes; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_bfd_bfd_openr" >&5
+$as_echo "$ac_cv_lib_bfd_bfd_openr" >&6; }
+if test "x$ac_cv_lib_bfd_bfd_openr" = xyes; then :
   AST_BFD_FOUND=yes
 else
   AST_BFD_FOUND=no
@@ -19546,10 +19544,7 @@ _ACEOF
 fi
 
 
-fi
-
-if test "${PBX_BFD}" = "0"; then
-  # openSUSE requires -lz
+# openSUSE requires -lz
 
 if test "x${PBX_BFD}" != "x1" -a "${USE_BFD}" != "no"; then
    pbxlibdir=""
@@ -19564,9 +19559,9 @@ if test "x${PBX_BFD}" != "x1" -a "${USE_BFD}" != "no"; then
 
       ast_ext_lib_check_save_CFLAGS="${CFLAGS}"
       CFLAGS="${CFLAGS} "
-      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for bfd_check_format in -lbfd" >&5
-$as_echo_n "checking for bfd_check_format in -lbfd... " >&6; }
-if ${ac_cv_lib_bfd_bfd_check_format+:} false; then :
+      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for bfd_openr in -lbfd" >&5
+$as_echo_n "checking for bfd_openr in -lbfd... " >&6; }
+if ${ac_cv_lib_bfd_bfd_openr+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
@@ -19580,27 +19575,27 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 #ifdef __cplusplus
 extern "C"
 #endif
-char bfd_check_format ();
+char bfd_openr ();
 int
 main ()
 {
-return bfd_check_format ();
+return bfd_openr ();
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_bfd_bfd_check_format=yes
+  ac_cv_lib_bfd_bfd_openr=yes
 else
-  ac_cv_lib_bfd_bfd_check_format=no
+  ac_cv_lib_bfd_bfd_openr=no
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_bfd_bfd_check_format" >&5
-$as_echo "$ac_cv_lib_bfd_bfd_check_format" >&6; }
-if test "x$ac_cv_lib_bfd_bfd_check_format" = xyes; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_bfd_bfd_openr" >&5
+$as_echo "$ac_cv_lib_bfd_bfd_openr" >&6; }
+if test "x$ac_cv_lib_bfd_bfd_openr" = xyes; then :
   AST_BFD_FOUND=yes
 else
   AST_BFD_FOUND=no
@@ -19646,7 +19641,6 @@ _ACEOF
 fi
 
 
-fi
 
 if test "x${OSARCH}" = "xlinux-gnu" ; then
 
@@ -20461,8 +20455,7 @@ $as_echo "#define HAVE_LIBEDIT 1" >>confdefs.h
 fi
    fi
 
-      if test "$PBX_LIBEDIT" != "1"; then
-         # some platforms do not list libedit via pkg-config, for example OpenBSD 6.2
+      # some platforms do not list libedit via pkg-config, for example OpenBSD 6.2
 
 if test "x${PBX_LIBEDIT}" != "x1" -a "${USE_LIBEDIT}" != "no"; then
    pbxlibdir=""
@@ -20559,9 +20552,8 @@ _ACEOF
 fi
 
 
-      fi
       if test "$PBX_LIBEDIT" = "1"; then
-      LIBEDIT_INTERNAL="no"
+         LIBEDIT_INTERNAL="no"
       fi
    fi
    if test "${LIBEDIT_INTERNAL}" = "yes"; then

diff --git a/configure.ac b/configure.ac
index d9148c0191b6f7fca0b77ff97bb2b0074d5bd0d3..c0099cb804669223ee8bfed02722fe624c844702 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1414,16 +1414,10 @@ PKG_PROG_PKG_CONFIG()
 AST_EXT_LIB_CHECK([ALSA], [asound], [snd_spcm_init], [alsa/asoundlib.h], [-lm -ldl])
 
 AST_EXT_LIB_CHECK([BFD], [bfd], [bfd_openr], [bfd.h])
-
-if test "${PBX_BFD}" = "0"; then
-  # Fedora/RedHat/CentOS require extra libraries
-  AST_EXT_LIB_CHECK([BFD], [bfd], [bfd_check_format], [bfd.h], [-ldl -liberty])
-fi
-
-if test "${PBX_BFD}" = "0"; then
-  # openSUSE requires -lz
-  AST_EXT_LIB_CHECK([BFD], [bfd], [bfd_check_format], [bfd.h], [-ldl -liberty -lz])
-fi
+# Fedora/RedHat/CentOS require extra libraries
+AST_EXT_LIB_CHECK([BFD], [bfd], [bfd_openr], [bfd.h], [-ldl -liberty])
+# openSUSE requires -lz
+AST_EXT_LIB_CHECK([BFD], [bfd], [bfd_openr], [bfd.h], [-ldl -liberty -lz])
 
 if test "x${OSARCH}" = "xlinux-gnu" ; then
   AST_EXT_LIB_CHECK([CAP], [cap], [cap_from_text], [sys/capability.h])
@@ -1539,12 +1533,10 @@ if test "${USE_LIBEDIT}" != "no"; then
    fi
    if test "${LIBEDIT_SYSTEM}" = "yes"; then
       AST_PKG_CONFIG_CHECK(LIBEDIT, libedit)
-      if test "$PBX_LIBEDIT" != "1"; then
-         # some platforms do not list libedit via pkg-config, for example OpenBSD 6.2
-         AST_EXT_LIB_CHECK([LIBEDIT], [edit], [history_init], [histedit.h], [-ltermcap])
-      fi
+      # some platforms do not list libedit via pkg-config, for example OpenBSD 6.2
+      AST_EXT_LIB_CHECK([LIBEDIT], [edit], [history_init], [histedit.h], [-ltermcap])
       if test "$PBX_LIBEDIT" = "1"; then
-      LIBEDIT_INTERNAL="no"
+         LIBEDIT_INTERNAL="no"
       fi
    fi
    if test "${LIBEDIT_INTERNAL}" = "yes"; then