Compiling error on cygwin

[jingsam]

When I tried to compile geos on cygwin, errors occur:

geos_ts_c.cpp: in fucntion ‘void GEOSContextHandle_HS::NOTICE_MESSAGE(std::string, ...)’: geos_ts_c.cpp:228:81: error：‘vsnprintf’ undeclared in the context

int result = vsnprintf(msgBuffer, sizeof(msgBuffer) - 1, fmt.c_str(), args);

geos_ts_c.cpp: in function ‘void GEOSContextHandle_HS::ERROR_MESSAGE(std::string, ...)’中: geos_ts_c.cpp:249:81: error：‘vsnprintf’ undeclared in the context

int result = vsnprintf(msgBuffer, sizeof(msgBuffer) - 1, fmt.c_str(), args);

That may be caused by the non-existence of vsnprintf() which is a c++11 function.

g++ version: 4.9.3

[strk]

According to the man page:

snprintf(), vsnprintf():

_BSD_SOURCE

_XOPEN_SOURCE >= 500

_ISOC99_SOURCE

_POSIX_C_SOURCE >= 200112L; or cc -std=c99

#include <stdio.h> #include <stdlib.h> #include <stdarg.h>

[jingsam]

I got it. I checked the compiling command as fellows:

g++ -DHAVE_CONFIG_H -I. -I../include -I../include/geos -I../include -DGEOS_CAPI_VERSION=\"3.5.0-CAPI-1.9.0\" -DGEOS_JTS_PORT=\"1.13.0\" -DGEOS_INLINE -pedantic -Wall -ansi -Wno-long-long -ffloat-store -g -O2 -MT libgeos_c_la-geos_ts_c.lo -MD -MP -MF .deps/libgeos_c_la-geos_ts_c.Tpo -c geos_ts_c.cpp -DDLL_EXPORT -DPIC -o .libs/libgeos_c_la-geos_ts_c.o

The tag "-ansi" is equivalent to "-std=c++98". The function "vsnprintf()" is not implemented in ansi standard. I think GEOS should adjust the compiling command.

[strk]

Ticket retargeted after milestone closed

[pramsey]

Ancient version on ancient platform. Revive with a patch, it won't be worked on by the community.