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Fix build for CentOS.

This commit is contained in:
wb2osz 2019-11-25 22:14:46 -05:00
parent 362d19e073
commit 6e92a4fa48
2 changed files with 10 additions and 7 deletions
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12
CMakeLists.txt
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@ -150,8 +150,16 @@ elseif (WIN32)
endif() endif()
if (C_CLANG OR C_GCC) if (C_CLANG OR C_GCC)
# _BSD_SOURCE is deprecated we need to use _DEFAULT_SOURCE # _BSD_SOURCE is deprecated we need to use _DEFAULT_SOURCE.
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wvla -ffast-math -ftree-vectorize -D_XOPEN_SOURCE=600 -D_DEFAULT_SOURCE ${EXTRA_FLAGS}") # That might be the case for a more modern compiler but it is still needed
# for CentOS 6 & 7. Without -D_BSD_SOURCE, we get Warning: Implicit declaration of
# functions alloca, cfmakeraw, scandir, setlinebuf, strcasecmp, strncasecmp, and strsep.
# When a function (like strsep) returns a pointer, the compiler instead assumes a 32 bit
# int and sign extends it out to be a 64 bit pointer. Use the pointer and Kaboom!
#
### Wextra spews out so much noise a serious problem was not noticed.
###set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wvla -ffast-math -ftree-vectorize -D_XOPEN_SOURCE=600 -D_DEFAULT_SOURCE ${EXTRA_FLAGS}")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wvla -ffast-math -ftree-vectorize -D_XOPEN_SOURCE=600 -D_DEFAULT_SOURCE -D_BSD_SOURCE ${EXTRA_FLAGS}")
# for math.h # for math.h
link_libraries("-lm") link_libraries("-lm")
elseif (C_MSVC) elseif (C_MSVC)

5
src/ptt.c
View File

@ -156,11 +156,6 @@
#include <unistd.h> #include <unistd.h>
#include <errno.h> #include <errno.h>
#include <grp.h> #include <grp.h>
#ifndef __USE_BSD
#define __USE_BSD // Needed for gcc 4.8.5 to find definitions for scandir
// and alphasort. Newer compilers don't have this issue.
#endif
#include <dirent.h> #include <dirent.h>
#ifdef USE_HAMLIB #ifdef USE_HAMLIB