我能够编译网关，但我得到下面运行make命令的错误。
gcc -D_REENTRANT=1 -I. -Igw -g -O2 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE -D_LARGE_FILES= -I/usr/include/libxml2 -I/usr/include/mysql -o gwlib/dbpool.o -c gwlib/dbpool.c
In file included from /usr/include/x86_64-linux-gnu/bits/libc-header-start.h:33,
from /usr/include/stdlib.h:25,
from gwlib/gwlib.h:70,
from gwlib/dbpool.c:70:
/usr/include/features.h:187:3: warning: #warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE" [-Wcpp]
187 | # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
In file included from gwlib/gwlib.h:83,
from gwlib/dbpool.c:70:
gwlib/dbpool_mysql.c: In function ‘mysql_select’:
gwlib/dbpool_mysql.c:224:48: error: ‘my_bool’ undeclared (first use in this function); did you mean ‘xr_bool’?
224 | bind[i].is_null = gw_malloc(sizeof(my_bool));
gwlib/gwmem.h:122:43: note: in definition of macro ‘gw_malloc’
122 | #define gw_malloc(size) (gw_native_malloc(size))|
gwlib/dbpool_mysql.c:224:48: note: each undeclared identifier is reported only once for each function it appears in
224 | bind[i].is_null = gw_malloc(sizeof(my_bool));
gwlib/gwmem.h:122:43: note: in definition of macro ‘gw_malloc’
122 | #define gw_malloc(size) (gw_native_malloc(size))
make: *** [Makefile:230: gwlib/dbpool.o] Error 1`
使用mysql 8进行编译时出现此错误
要解决这个问题，将这些行添加到gwlib/dbpool_mysql.c
/* define my_bool for newer versions because they use the bool or int C type instead */
#if MYSQL_VERSION_ID >= 80000 && !defined(MARIADB_BASE_VERSION)
typedef bool my_bool;
#endif