From: Gary V. Vaughan Date: Sun, 20 Jun 1999 18:10:07 +0000 (+0000) Subject: * ltconfig.in: moved the test for NM after the test for X-Git-Tag: release-1-3b~12 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ea20fa5a74551c052e6fe410234f18eeda222674;p=thirdparty%2Flibtool.git * ltconfig.in: moved the test for NM after the test for no_builtin_flag. --- diff --git a/ChangeLog b/ChangeLog index 43cf9765b..97f50f283 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +1999-06-20 Gary V. Vaughan + + * ltconfig.in: moved the test for NM after the test for + no_builtin_flag. + 1999-06-20 Alexandre Oliva * ltconfig.in: Use sed '$q' instead of sed "" for copying ltmain, diff --git a/ltconfig.in b/ltconfig.in index 57ed3ac00..bc1ed863f 100755 --- a/ltconfig.in +++ b/ltconfig.in @@ -574,167 +574,6 @@ if test -z "$NM"; then echo "$ac_t$NM" 1>&6 fi -# Check for command to grab the raw symbol name followed by C symbol from nm. -echo $ac_n "checking command to parse $NM output... $ac_c" 1>&6 - -# These are sane defaults that work on at least a few old systems. -# [They come from Ultrix. What could be older than Ultrix?!! ;)] - -# Character class describing NM global symbol codes. -symcode='[BCDEGRST]' - -# Regexp to match symbols that can be accessed directly from C. -sympat='\([_A-Za-z][_A-Za-z0-9]*\)' - -# Transform the above into a raw symbol and a C symbol. -symxfrm='\1 \2\3 \3' - -# Transform an extracted symbol line into a proper C declaration -global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern char \1;/p'" - -# Define system-specific variables. -case "$host_os" in -aix*) - symcode='[BCDT]' - ;; -cygwin* | mingw*) - symcode='[ABCDGISTW]' - ;; -hpux*) # Its linker distinguishes data from code symbols - global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern char \1();/p' -e 's/^. .* \(.*\)$/extern char \1;/p'" - ;; -irix*) - symcode='[BCDEGRST]' - ;; -solaris*) - symcode='[BDT]' - ;; -sysv4) - symcode='[DFNSTU]' - ;; -esac - -# If we're using GNU nm, then use its standard symbol codes. -if $NM -V 2>&1 | egrep '(GNU|with BFD)' > /dev/null; then - symcode='[ABCDGISTW]' -fi - -# Try without a prefix undercore, then with it. -for ac_symprfx in "" "_"; do - - # Write the raw and C identifiers. - global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode\)[ ][ ]*\($ac_symprfx\)$sympat$/$symxfrm/p'" - - # Check to see that the pipe works correctly. - pipe_works=no - $rm conftest* - cat > conftest.c <&5 - if { (eval echo $progname:@LINENO@: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; } && test -s conftest.$objext; then - # Now try to grab the symbols. - nlist=conftest.nm - if { echo "$progname:@LINENO@: eval \"$NM conftest.$objext | $global_symbol_pipe > $nlist\"" >&5; eval "$NM conftest.$objext | $global_symbol_pipe > $nlist 2>&5"; } && test -s "$nlist"; then - - # Try sorting and uniquifying the output. - if sort "$nlist" | uniq > "$nlist"T; then - mv -f "$nlist"T "$nlist" - else - rm -f "$nlist"T - fi - - # Make sure that we snagged all the symbols we need. - if egrep ' nm_test_var$' "$nlist" >/dev/null; then - if egrep ' nm_test_func$' "$nlist" >/dev/null; then - cat < conftest.c -#ifdef __cplusplus -extern "C" { -#endif - -EOF - # Now generate the symbol file. - eval "$global_symbol_to_cdecl"' < "$nlist" >> conftest.c' - - cat <> conftest.c -#if defined (__STDC__) && __STDC__ -# define lt_ptr_t void * -#else -# define lt_ptr_t char * -# define const -#endif - -/* The mapping between symbol names and symbols. */ -const struct { - const char *name; - lt_ptr_t address; -} -lt_preloaded_symbols[] = -{ -EOF - sed 's/^. \(.*\) \(.*\)$/ {"\2", (lt_ptr_t) \&\2},/' < "$nlist" >> conftest.c - cat <<\EOF >> conftest.c - {0, (lt_ptr_t) 0} -}; - -#ifdef __cplusplus -} -#endif -EOF - # Now try linking the two files. - mv conftest.$objext conftstm.$objext - save_LIBS="$LIBS" - save_CFLAGS="$CFLAGS" - LIBS="conftstm.$objext" - CFLAGS="$CFLAGS$no_builtin_flag" - if { (eval echo $progname:@LINENO@: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then - pipe_works=yes - else - echo "$progname: failed program was:" >&5 - cat conftest.c >&5 - fi - LIBS="$save_LIBS" - else - echo "cannot find nm_test_func in $nlist" >&5 - fi - else - echo "cannot find nm_test_var in $nlist" >&5 - fi - else - echo "cannot run $global_symbol_pipe" >&5 - fi - else - echo "$progname: failed program was:" >&5 - cat conftest.c >&5 - fi - $rm conftest* conftst* - - # Do not use the global_symbol_pipe unless it works. - if test "$pipe_works" = yes; then - break - else - global_symbol_pipe= - fi -done -if test "$pipe_works" = yes; then - echo "${ac_t}ok" 1>&6 -else - echo "${ac_t}failed" 1>&6 -fi - -if test -z "$global_symbol_pipe"; then - global_symbol_to_cdecl= -fi - # Check to see if we are using GCC. if test "$with_gcc" != yes || test -z "$CC"; then # If CC is not set, then try to find GCC or a usable CC. @@ -2151,6 +1990,167 @@ esac echo "$ac_t$dynamic_linker" 1>&6 test "$dynamic_linker" = no && can_build_shared=no +# Check for command to grab the raw symbol name followed by C symbol from nm. +echo $ac_n "checking command to parse $NM output... $ac_c" 1>&6 + +# These are sane defaults that work on at least a few old systems. +# [They come from Ultrix. What could be older than Ultrix?!! ;)] + +# Character class describing NM global symbol codes. +symcode='[BCDEGRST]' + +# Regexp to match symbols that can be accessed directly from C. +sympat='\([_A-Za-z][_A-Za-z0-9]*\)' + +# Transform the above into a raw symbol and a C symbol. +symxfrm='\1 \2\3 \3' + +# Transform an extracted symbol line into a proper C declaration +global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern char \1;/p'" + +# Define system-specific variables. +case "$host_os" in +aix*) + symcode='[BCDT]' + ;; +cygwin* | mingw*) + symcode='[ABCDGISTW]' + ;; +hpux*) # Its linker distinguishes data from code symbols + global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern char \1();/p' -e 's/^. .* \(.*\)$/extern char \1;/p'" + ;; +irix*) + symcode='[BCDEGRST]' + ;; +solaris*) + symcode='[BDT]' + ;; +sysv4) + symcode='[DFNSTU]' + ;; +esac + +# If we're using GNU nm, then use its standard symbol codes. +if $NM -V 2>&1 | egrep '(GNU|with BFD)' > /dev/null; then + symcode='[ABCDGISTW]' +fi + +# Try without a prefix undercore, then with it. +for ac_symprfx in "" "_"; do + + # Write the raw and C identifiers. + global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode\)[ ][ ]*\($ac_symprfx\)$sympat$/$symxfrm/p'" + + # Check to see that the pipe works correctly. + pipe_works=no + $rm conftest* + cat > conftest.c <&5 + if { (eval echo $progname:@LINENO@: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; } && test -s conftest.$objext; then + # Now try to grab the symbols. + nlist=conftest.nm + if { echo "$progname:@LINENO@: eval \"$NM conftest.$objext | $global_symbol_pipe > $nlist\"" >&5; eval "$NM conftest.$objext | $global_symbol_pipe > $nlist 2>&5"; } && test -s "$nlist"; then + + # Try sorting and uniquifying the output. + if sort "$nlist" | uniq > "$nlist"T; then + mv -f "$nlist"T "$nlist" + else + rm -f "$nlist"T + fi + + # Make sure that we snagged all the symbols we need. + if egrep ' nm_test_var$' "$nlist" >/dev/null; then + if egrep ' nm_test_func$' "$nlist" >/dev/null; then + cat < conftest.c +#ifdef __cplusplus +extern "C" { +#endif + +EOF + # Now generate the symbol file. + eval "$global_symbol_to_cdecl"' < "$nlist" >> conftest.c' + + cat <> conftest.c +#if defined (__STDC__) && __STDC__ +# define lt_ptr_t void * +#else +# define lt_ptr_t char * +# define const +#endif + +/* The mapping between symbol names and symbols. */ +const struct { + const char *name; + lt_ptr_t address; +} +lt_preloaded_symbols[] = +{ +EOF + sed 's/^. \(.*\) \(.*\)$/ {"\2", (lt_ptr_t) \&\2},/' < "$nlist" >> conftest.c + cat <<\EOF >> conftest.c + {0, (lt_ptr_t) 0} +}; + +#ifdef __cplusplus +} +#endif +EOF + # Now try linking the two files. + mv conftest.$objext conftstm.$objext + save_LIBS="$LIBS" + save_CFLAGS="$CFLAGS" + LIBS="conftstm.$objext" + CFLAGS="$CFLAGS$no_builtin_flag" + if { (eval echo $progname:@LINENO@: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then + pipe_works=yes + else + echo "$progname: failed program was:" >&5 + cat conftest.c >&5 + fi + LIBS="$save_LIBS" + else + echo "cannot find nm_test_func in $nlist" >&5 + fi + else + echo "cannot find nm_test_var in $nlist" >&5 + fi + else + echo "cannot run $global_symbol_pipe" >&5 + fi + else + echo "$progname: failed program was:" >&5 + cat conftest.c >&5 + fi + $rm conftest* conftst* + + # Do not use the global_symbol_pipe unless it works. + if test "$pipe_works" = yes; then + break + else + global_symbol_pipe= + fi +done +if test "$pipe_works" = yes; then + echo "${ac_t}ok" 1>&6 +else + echo "${ac_t}failed" 1>&6 +fi + +if test -z "$global_symbol_pipe"; then + global_symbol_to_cdecl= +fi + # Report the final consequences. echo "checking if libtool supports shared libraries... $can_build_shared" 1>&6