diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 85 |
1 files changed, 84 insertions, 1 deletions
@@ -230,6 +230,15 @@ intptr [$intptr] value can be converted to it. If this is blank, the configure script will try to auto detect it. +lit_align [$lit_align] + + Specifies alignment for wide string literals. This is guessed + from the size of the wchar_t type. If your wchar_t type is two byte wide, but + wide literals are aligned to four bytes, then you should specify this. This + will eliminate some kludges in the program. There is no easy way to check + for this withut generating and running a C program, which is unfriendly + for cross-compiling! + inline [$inline] Specifies the syntax for defining an inline function, in such @@ -620,7 +629,15 @@ char sizeof_longlong_t[sizeof (longlong_t)]; while read symbol type offset size ; do eval "size=$(( 0$size + 0 ))" - eval $(printf "%s=%d\n" "$symbol" "$size") + symbol=${symbol#_} + if [ $type == "C" ] ; then + size=$offset + fi + case "$symbol" in + sizeof* ) + eval $(printf "%s=%d\n" "$symbol" "$size") + ;; + esac done < conftest.syms rm -f conftest.syms conftest.o @@ -652,6 +669,68 @@ intptr_max_expr="((((($intptr) 1 << $((sizeof_ptr * 8 - 2))) - 1) << 1) + 1)" printf "#define INT_PTR_MAX %s\n" "$intptr_max_expr" >> config.h printf "#define INT_PTR_MIN (-INT_PTR_MAX)\n" >> config.h +# +# Alignment of wchar_t +# +# What we really want to know is the alignment of wide string literals +# like L"wide literal". +# +# We make pessimistic assumption that the size of the wchar_t type is this +# alignment. +# +# There is no easy way to get the information without running a compiled +# program. +# + +printf "Conservatively guessing the alignment of wide literals ... " + +if [ -z "$lit_align" ] ; then + cat > conftest.c <<! +#include <wchar.h> +char sizeof_wchar_t[sizeof (wchar_t)]; +! + rm -f conftest.o conftest.syms + + if ! make conftest.syms > conftest.err 2>&1 ; then + printf "failed\n\n" + + printf "Errors from compilation: \n\n" + cat conftest.err + exit 1 + fi + + sizeof_wchar_t=0 + + while read symbol type offset size ; do + eval "size=$(( 0$size + 0 ))" + symbol=${symbol#_} + if [ $type == "C" ] ; then + size=$offset + fi + case "$symbol" in + sizeof* ) + eval $(printf "%s=%d\n" "$symbol" "$size") + ;; + esac + done < conftest.syms + + rm -f conftest.syms conftest.o + + if [ $sizeof_wchar_t -eq 0 ] ; then + printf "failed\n" + exit 1 + fi + + lit_align=$sizeof_wchar_t +fi + +printf "%d\n" "$lit_align" +printf "#define LIT_ALIGN %d\n" "$lit_align" >> config.h + +# +# Inline functions +# + printf "Checking how to declare inline functions ... " if [ -z "$inline" ] ; then @@ -687,6 +766,10 @@ fi printf '"%s"\n' "$inline" printf "#define INLINE $inline\n" >> config.h +# +# Valgrind +# + if [ -n "$valgrind" ] ; then printf "Checking valgrind API availability ... " |