diff options
Diffstat (limited to 'gdb/configure.in')
| -rw-r--r-- | gdb/configure.in | 37 |
1 files changed, 28 insertions, 9 deletions
diff --git a/gdb/configure.in b/gdb/configure.in index f67b3aa..a4c50f1 100644 --- a/gdb/configure.in +++ b/gdb/configure.in @@ -41,20 +41,20 @@ AC_CHECK_HEADERS(limits.h memory.h string.h strings.h unistd.h termios.h termio. AC_HEADER_STAT AC_MSG_CHECKING([for gregset_t type]) -AC_CACHE_VAL(gdb_have_gregset_t, +AC_CACHE_VAL(gdb_cv_have_gregset_t, [AC_TRY_LINK([#include <sys/procfs.h>],[gregset_t *gregsetp = 0], -gdb_have_gregset_t=yes, gdb_have_gregset_t=no)]) -AC_MSG_RESULT($gdb_have_gregset_t) -if test $gdb_have_gregset_t = yes; then +gdb_cv_have_gregset_t=yes, gdb_cv_have_gregset_t=no)]) +AC_MSG_RESULT($gdb_cv_have_gregset_t) +if test $gdb_cv_have_gregset_t = yes; then AC_DEFINE(HAVE_GREGSET_T) fi AC_MSG_CHECKING([for fpregset_t type]) -AC_CACHE_VAL(gdb_have_fpregset_t, +AC_CACHE_VAL(gdb_cv_have_fpregset_t, [AC_TRY_LINK([#include <sys/procfs.h>],[fpregset_t *fpregsetp = 0], -gdb_have_fpregset_t=yes, gdb_have_fpregset_t=no)]) -AC_MSG_RESULT($gdb_have_fpregset_t) -if test $gdb_have_fpregset_t = yes; then +gdb_cv_have_fpregset_t=yes, gdb_cv_have_fpregset_t=no)]) +AC_MSG_RESULT($gdb_cv_have_fpregset_t) +if test $gdb_cv_have_fpregset_t = yes; then AC_DEFINE(HAVE_FPREGSET_T) fi @@ -62,7 +62,7 @@ dnl See if compiler supports "long double" type. Can't use AC_C_LONG_DOUBLE dnl because autoconf complains about cross-compilation issues. However, this dnl code uses the same variables as the macro for compatibility. -AC_MSG_CHECKING(for long double) +AC_MSG_CHECKING(for long double support in compiler) AC_CACHE_VAL(ac_cv_c_long_double, [AC_TRY_COMPILE(, [long double foo;], ac_cv_c_long_double=yes, ac_cv_c_long_double=no)]) @@ -71,6 +71,25 @@ if test $ac_cv_c_long_double = yes; then AC_DEFINE(HAVE_LONG_DOUBLE) fi +dnl See if the compiler and runtime support printing long doubles + +AC_MSG_CHECKING(for long double support in printf) +AC_CACHE_VAL(gdb_cv_printf_has_long_double, +[AC_TRY_RUN([ +int main () { + char buf[16]; + long double f = 3.141592653; + sprintf (buf, "%Lg", f); + return (strncmp ("3.14159", buf, 7)); +}], +gdb_cv_printf_has_long_double=yes, +gdb_cv_printf_has_long_double=no, +gdb_cv_printf_has_long_double=no)]) +if test $gdb_cv_printf_has_long_double = yes; then + AC_DEFINE(PRINTF_HAS_LONG_DOUBLE) +fi +AC_MSG_RESULT($gdb_cv_printf_has_long_double) + AC_FUNC_MMAP dnl Handle optional features that can be enabled. |