1.freelocale未定义
问题编译错误提示：
stdsoap2.c:7468：对‘freelocale’未定义的引用
stdsoap2.c:7468：对‘freelocale’未定义的引用
stdsoap2.c:7468：对‘freelocale’未定义的引用
stdsoap2.c:16684：对‘strtod_l’未定义的引用
stdsoap2.c:16684：对‘newlocale’未定义的引用
把stdsoap2.h中的这个定义注释掉即可：
# elif defined(__GLIBC__) || defined(__GNU__) || defined(__GNUC__)
# define HAVE_POLL
# define HAVE_SNPRINTF
# define HAVE_STRRCHR
# define HAVE_STRTOD
# define HAVE_SSCANF
# define HAVE_STRTOD_L
# define HAVE_SSCANF_L
# define HAVE_STRTOL
# define HAVE_STRTOUL
# define HAVE_STRTOLL
# define HAVE_STRTOULL
# define HAVE_GETTIMEOFDAY
# define HAVE_SYS_TIMEB_H
# define HAVE_FTIME
# define HAVE_RAND_R
# define HAVE_GMTIME_R
# define HAVE_ASCTIME_R
# define HAVE_LOCALTIME_R
# define HAVE_STRERROR_R
# define HAVE_TIMEGM
# define HAVE_WCTOMB
# define HAVE_MBTOWC
# define HAVE_ISNAN
# define HAVE_ISINF
# if !defined(__GNUC__) || __GNUC__ >= 4 /* gcc 3 and earlier often refuse to compile _l functions */
# define HAVE_STRTOD_L
# define HAVE_SSCANF_L
//# define HAVE_LOCALE_H //注释掉解决freelocale未定义问题
2.__isnan等等未定义
stdsoap2.c:(.text+0x6194): warning: gethostbyname_r is obsolescent, use getnameinfo() instead.
/tmp/ccqD1Pz1.o: In function `soap_float2s':
stdsoap2.c:(.text+0x19a80): undefined reference to `__isnan'
stdsoap2.c:(.text+0x19ad0): undefined reference to `__isnanf'
stdsoap2.c:(.text+0x19af4): undefined reference to `__isnanf'
stdsoap2.c:(.text+0x19b44): undefined reference to `__isnanf'
stdsoap2.c:(.text+0x19b68): undefined reference to `__isnanf'
/tmp/ccqD1Pz1.o: In function `soap_double2s':
stdsoap2.c:(.text+0x1a378): undefined reference to `__isnan'
stdsoap2.c:(.text+0x1a3cc): undefined reference to `__isnan'
stdsoap2.c:(.text+0x1a3f8): undefined reference to `__isnan'
stdsoap2.c:(.text+0x1a44c): undefined reference to `__isnan'
stdsoap2.c:(.text+0x1a478): undefined reference to `__isnan'
collect2: ld returned 1 exit status
加上连接库 -lm 就可以编译通过了；
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