diff options
| -rw-r--r-- | ChangeLog | 9 | ||||
| -rw-r--r-- | HACKING | 8 | ||||
| -rwxr-xr-x | configure | 2 |
3 files changed, 14 insertions, 5 deletions
@@ -1,5 +1,14 @@ 2012-04-10 Kaz Kylheku <kaz@kylheku.com> + * configure: Switch from _POSIX_C_SOURCE=2 to _XOPEN_SOURCE. + We will be relying on the gettimeofday function which only came + into POSIX in 2001, but was in Unix long before then. + + * HACKING: Replace notes about -D_POSIX_C_SOURCE which are not true + any more. + +2012-04-10 Kaz Kylheku <kaz@kylheku.com> + * Makefile (conftest.ccver): New phony target. * configure: The test for non-working 128 bit integers in the gcc @@ -43,10 +43,10 @@ provide rationale and make coding recommendations. Txr is written in a language that consists of the common dialect between C90 and C++98. The code can be built with either the GNU C compiler or the GNU C++ -compiler. Use is made of some POSIX.2 functions, which are requested by means -of -D_POSIX_2_SOURCE. Also, the <wchar.h> header is used, which was introduced -by a 1995 addendum to the C language, so it may be said that the actual C -dialect is C95. +compiler. Use is made of some Unix functions from before Unix95, which are +requested by means of -D_XOPEN_SOURCE (POSIX.1, POSIX.2, X/Open Portabiity +Guide 4). Also, the <wchar.h> header is used, which was introduced by a 1995 +addendum to the C language, so it may be said that the actual C dialect is C95. In coding new features or fixing bugs, care must be taken to preserve this. Code must continue to compile as C and C++, and not increase the portability @@ -128,7 +128,7 @@ yacc_given=${yacc+y} yacc=${yacc-'$(cross)$(tool_prefix)$(yaccname)'} nm=${nm-'$(cross)$(tool_prefix)nm'} opt_flags=${opt_flags--O2} -lang_flags=${lang_flags--ansi -D_POSIX_C_SOURCE=2} +lang_flags=${lang_flags--ansi -D_XOPEN_SOURCE} diag_flags=${diag_flags--Wall -Wmissing-prototypes -Wstrict-prototypes} debug_flags=${debug_flags--g} inline=${inline-} |