use AS_HELP_STRING for all configure options

[uclinux-h8/elf2flt.git] / configure.in

diff --git a/configure.in b/configure.in
index 5ab8983..951eb32 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -2,64 +2,101 @@ dnl Process this file with autoconf to produce a configure script.
 AC_INIT(elf2flt.c)
 
 AC_ARG_WITH(zlib-prefix,
-       [ --with-zlib-prefix=<dir>  path to installed zlib ],
+       AS_HELP_STRING([--with-zlib-prefix=<dir>], [path to installed zlib]),
        [ ac_zlib_prefix=$withval ],
        [ ac_zlib_prefix=NONE ]
 )
 
 AC_ARG_WITH(libbfd,
-       [ --with-libbfd=<file>  path to libbfd.a library to use ],
+       AS_HELP_STRING([--with-libbfd=<file>], [path to libbfd.a library to use]),
        [ ac_libbfd=$withval ],
        [ ac_libbfd=NONE ]
 )
 
 AC_ARG_WITH(libiberty,
-       [ --with-libiberty=<file>  path to libiberty.a library to use ],
+       AS_HELP_STRING([--with-libiberty=<file>], [path to libiberty.a library to use]),
        [ ac_libiberty=$withval ],
        [ ac_libiberty=NONE ]
 )
 
 AC_ARG_WITH(bfd-include-dir,
-       [ --with-bfd-include-dir=<dir>  include path for correct bfd.h ],
+       AS_HELP_STRING([--with-bfd-include-dir=<dir>], [include path for correct bfd.h]),
        [ ac_bfd_include_dir=$withval ],
        [ ac_bfd_include_dir=NONE ]
 )
 
 AC_ARG_WITH(binutils-include-dir,
-       [ --with-binutils-include-dir=<dir>  include path for binutils headers ],
+       AS_HELP_STRING([--with-binutils-include-dir=<dir>], [include path for binutils headers]),
        [ ac_binutils_include_dir=$withval ],
        [ ac_binutils_include_dir=NONE ]
 )
 
 AC_ARG_WITH(binutils-ldscript-dir,
-       [ --with-binutils-ldscript-dir=<dir>  path to install elf2flt.ld ],
+       AS_HELP_STRING([--with-binutils-ldscript-dir=<dir>], [path to install elf2flt.ld]),
        [ ac_binutils_ldscript_dir=$withval ],
        [ ac_binutils_ldscript_dir=NONE ]
 )
 
 AC_ARG_WITH(binutils-build-dir,
-       [ --with-binutils-build-dir=<dir>  path to compiled binutils tree ],
+       AS_HELP_STRING([--with-binutils-build-dir=<dir>], [path to compiled binutils tree]),
        [ ac_binutils_build_dir=$withval ],
        [ ac_binutils_build_dir=NONE ]
 )
 
+AC_ARG_ENABLE(ld-elf2flt-binary,
+       AS_HELP_STRING([--disable-ld-elf2flt-binary], [use ld-elf2flt shell script]),
+       [ use_ld_elf2flt_binary=$enableval ],
+       [ use_ld_elf2flt_binary=yes ]
+)
+
+dnl convert a yes/no variable to 1/0 for C code
+var_yn_to_10() {
+       if eval test \"\$$1\" = yes ; then
+               eval $1=1
+       else
+               eval $1=0
+       fi
+}
+
 AC_ARG_ENABLE(got-check,
-       [ --disable-got-check - disable check for GOT (needed on H8) ],
+       AS_HELP_STRING([--disable-got-check], [disable check for GOT (needed on H8)]),
        [ got_check=$enableval ],
        [ got_check=yes ]
 )
+var_yn_to_10 got_check
 
-AC_ARG_ENABLE(emit_relocs,
-       [ --disable-emit-relocs - don't use the --emit-relocs (-q) linker option ],
+AC_ARG_ENABLE(emit-relocs,
+       AS_HELP_STRING([--disable-emit-relocs], [don't use the --emit-relocs (-q) linker option]),
        [ emit_relocs=$enableval ],
        [ emit_relocs=yes ]
 )
+var_yn_to_10 emit_relocs
+
+AC_ARG_ENABLE(emit-ctor-dtor,
+       AS_HELP_STRING([--enable-emit-ctor-dtor], [manually create ctor/dtor list]),
+       [ emit_ctor_dtor=$enableval ],
+       [ emit_ctor_dtor=no ]
+)
+var_yn_to_10 emit_ctor_dtor
+
+AC_ARG_ENABLE(always-reloc-text,
+       AS_HELP_STRING([--enable-always-reloc-text], [always process text relocs ignoring pic/got (needed on Blackfin)]),
+       [ always_reloc_text=$enableval ],
+       [
+       case $target in
+               bfin*) always_reloc_text=yes;;
+               *)     always_reloc_text=no;;
+       esac
+       ]
+)
+var_yn_to_10 always_reloc_text
 
 AC_CANONICAL_HOST
 AC_CANONICAL_TARGET
 
 dnl Checks for programs.
 AC_PROG_CC
+AC_USE_SYSTEM_EXTENSIONS
 AC_PROG_INSTALL
 
 if test "$ac_binutils_build_dir" != "NONE"; then
@@ -135,6 +172,13 @@ Run configure again specifying these options:
 ])
 fi
 
+SYMBOL_PREFIX=
+case $target in
+       h8300|bfin*)
+               SYMBOL_PREFIX=_
+               ;;
+esac
+
 dnl Make sure we resolve system symbols before libiberty/libbfd ones.
 dnl Otherwise, things like getopt get screwed up because the system headers
 dnl redirect some functions to the system symbols, but other local symbols
@@ -152,7 +196,14 @@ AC_C_CONST
 dnl Checks for library functions.
 AC_FUNC_VPRINTF
 
-AC_CHECK_FUNCS(dcgettext libintl_dgettext)
+AC_CHECK_FUNCS([ \
+       dcgettext \
+       getline \
+       libintl_dgettext \
+       strsignal \
+])
+
+test "$GCC" = yes && CFLAGS="-Wall $CFLAGS"
 
 dnl Subsitute values
 AC_SUBST(target)
@@ -164,8 +215,12 @@ AC_SUBST(bfd_include_dir)
 AC_SUBST(binutils_include_dir)
 AC_SUBST(zlib_include_dir)
 AC_SUBST(binutils_ldscript_dir)
+AC_SUBST(use_ld_elf2flt_binary)
 AC_SUBST(got_check)
 AC_SUBST(emit_relocs)
+AC_SUBST(emit_ctor_dtor)
+AC_SUBST(always_reloc_text)
+AC_SUBST(SYMBOL_PREFIX)
 
-AC_OUTPUT(Makefile ld-elf2flt)
+AC_OUTPUT(ld-elf2flt.sh:ld-elf2flt.in Makefile elf2flt.ld)