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| author | DJ Delorie <dj@delorie.com> | 2001-03-31 19:05:20 +0000 |
|---|---|---|
| committer | DJ Delorie <dj@delorie.com> | 2001-03-31 19:05:20 +0000 |
| commit | 7044cffb19859a69721669afbc3d896b13477714 (patch) | |
| tree | ed42468f6b1519d29fe8d7913476a5a5ecedc57c /include | |
| parent | 3e5d587416160bac4882b9dbe9e8e81fa054ce09 (diff) | |
| download | gdb-7044cffb19859a69721669afbc3d896b13477714.tar.gz | |
merge from gcc
Diffstat (limited to 'include')
| -rw-r--r-- | include/ChangeLog | 4 | ||||
| -rw-r--r-- | include/libiberty.h | 7 |
2 files changed, 10 insertions, 1 deletions
diff --git a/include/ChangeLog b/include/ChangeLog index 2c5bc85136a..550af2e9f98 100644 --- a/include/ChangeLog +++ b/include/ChangeLog @@ -1,3 +1,7 @@ +2001-03-31 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> + + * libiberty.h (alloca): Handle setting C_ALLOCA. + 2001-03-20 Jim Blandy <jimb@redhat.com> * demangle.h (enum gnu_v3_constructor_kinds, diff --git a/include/libiberty.h b/include/libiberty.h index c7a4d060c11..effe5f628cc 100644 --- a/include/libiberty.h +++ b/include/libiberty.h @@ -238,15 +238,20 @@ extern int vasprintf PARAMS ((char **, const char *, va_list)) /* Drastically simplified alloca configurator. If we're using GCC, we use __builtin_alloca; otherwise we use the C alloca. The C alloca is always available. You can override GCC by defining - USE_C_ALLOCA yourself. */ + USE_C_ALLOCA yourself. The canonical autoconf macro C_ALLOCA is + also set/unset as it is often used to indicate whether code needs + to call alloca(0). */ extern PTR C_alloca PARAMS((size_t)); #undef alloca #if GCC_VERSION >= 2000 && !defined USE_C_ALLOCA # define alloca(x) __builtin_alloca(x) +# undef C_ALLOCA #else # define alloca(x) C_alloca(x) # undef USE_C_ALLOCA # define USE_C_ALLOCA 1 +# undef C_ALLOCA +# define C_ALLOCA 1 #endif #ifdef __cplusplus |