dnl Process this file with autoconf to produce a configure script. AC_INIT(elf2flt.c) AC_ARG_WITH(zlib-prefix, AS_HELP_STRING([--with-zlib-prefix=], [path to installed zlib]), [ ac_zlib_prefix=$withval ], [ ac_zlib_prefix=NONE ] ) AC_ARG_WITH(libbfd, AS_HELP_STRING([--with-libbfd=], [path to libbfd.a library to use]), [ ac_libbfd=$withval ], [ ac_libbfd=NONE ] ) AC_ARG_WITH(libiberty, AS_HELP_STRING([--with-libiberty=], [path to libiberty.a library to use]), [ ac_libiberty=$withval ], [ ac_libiberty=NONE ] ) AC_ARG_WITH(bfd-include-dir, AS_HELP_STRING([--with-bfd-include-dir=], [include path for correct bfd.h]), [ ac_bfd_include_dir=$withval ], [ ac_bfd_include_dir=NONE ] ) AC_ARG_WITH(binutils-include-dir, AS_HELP_STRING([--with-binutils-include-dir=], [include path for binutils headers]), [ ac_binutils_include_dir=$withval ], [ ac_binutils_include_dir=NONE ] ) AC_ARG_WITH(binutils-ldscript-dir, AS_HELP_STRING([--with-binutils-ldscript-dir=], [path to install elf2flt.ld]), [ ac_binutils_ldscript_dir=$withval ], [ ac_binutils_ldscript_dir=NONE ] ) AC_ARG_WITH(binutils-build-dir, AS_HELP_STRING([--with-binutils-build-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 $1=0 fi } AC_ARG_ENABLE(got-check, AS_HELP_STRING([--disable-got-check], [disable check for GOT (needed on H8)]), [ got_check=$enableval ], [ got_check=yes ] ) var_yn_to_10 got_check AC_ARG_ENABLE(emit-relocs, 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 test "$ac_libbfd" = "NONE" && ac_libbfd="$ac_binutils_build_dir/bfd/libbfd.a" test "$ac_libiberty" = "NONE" && ac_libiberty="$ac_binutils_build_dir/libiberty/libiberty.a" test "$ac_bfd_include_dir" = "NONE" && ac_bfd_include_dir="$ac_binutils_build_dir/bfd" test "$ac_binutils_include_dir" = "NONE" && ac_binutils_include_dir="$ac_binutils_build_dir/include" fi dnl Checks for libraries. dnl The dlopen() function is in the C library for *BSD and in dnl libdl on GLIBC-based systems AC_SEARCH_LIBS([dlopen], [dl dld], [], [ AC_MSG_ERROR([unable to find the dlopen() function]) ]) if test "$ac_libiberty" = "NONE"; then AC_CHECK_LIB(iberty, objalloc_create) ac_libiberty=auto else LIBS="$ac_libiberty $LIBS" fi if test "$ac_libbfd" = "NONE"; then AC_CHECK_LIB(bfd, bfd_openr) ac_libbfd=auto else LIBS="$ac_libbfd $LIBS" fi if test "$ac_zlib_prefix" = "NONE"; then AC_CHECK_LIB(z, deflate) else LIBS="-L$ac_zlib_prefix/lib -lz $LIBS" fi bfd_include_dir= if test "$ac_bfd_include_dir" != "NONE"; then bfd_include_dir="-I$ac_bfd_include_dir" fi binutils_include_dir= if test "$ac_binutils_include_dir" != "NONE"; then binutils_include_dir="-I$ac_binutils_include_dir" fi zlib_include_dir= if test "$ac_zlib_prefix" != "NONE"; then zlib_include_dir="-I$ac_zlib_prefix/include" fi binutils_ldscript_dir= if test "$ac_binutils_ldscript_dir" = "NONE"; then ac_binutils_ldscript_dir="\${TOOLDIR}/../${target_alias}/lib" fi binutils_ldscript_dir="$ac_binutils_ldscript_dir" if test "$ac_libbfd" = "NONE" -o "$ac_libiberty" = "NONE" ; then AC_MSG_ERROR([ You need to specify the location of the libfd.a and libiberty.a host libraries from the binutils package. Run configure again specifying these options: ./configure --target= --with-bfd-include-dir= --with-libbfd= --with-libiberty= ]) fi if test "$ac_bfd_include_dir" = "NONE" ; then AC_MSG_ERROR([ You need to specify the location of the bfd.h header from a configured/compiled version of the binutils package for your target. Without this your elf2flt may crash as it will try to use the systems bfd.h which may be from a different binutils package. Run configure again specifying these options: ./configure --target= --with-bfd-include-dir= --with-libbfd= --with-libiberty= ]) fi SYMBOL_PREFIX= case $target in h8300|bfin*) SYMBOL_PREFIX=_ ;; esac dnl Make sure we resolve system symbols before libiberty/libbfd ones. dnl Otherwise, things like getopt get screwed up because the system headers dnl redirect some functions to the system symbols, but other local symbols dnl come from libiberty/libbfd. dnl int getopt(int, char * const [], const char *) __asm("_" "getopt" "$UNIX2003"); AC_CHECK_LIB(c, malloc, LIBS="-lc $LIBS") dnl Checks for header files. AC_HEADER_STDC AC_CHECK_HEADERS(fcntl.h unistd.h bfd.h) dnl Checks for typedefs, structures, and compiler characteristics. AC_C_CONST dnl Checks for library functions. AC_FUNC_VPRINTF AC_CHECK_FUNCS([ \ dcgettext \ getline \ libintl_dgettext \ strsignal \ ]) test "$GCC" = yes && CFLAGS="-Wall $CFLAGS" dnl Subsitute values AC_SUBST(target) AC_SUBST(target_alias) AC_SUBST(target_cpu) AC_SUBST(target_os) AC_SUBST(target_vendor) 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(ld-elf2flt.sh:ld-elf2flt.in Makefile elf2flt.ld)