Pthread_rwlock_t data type declarations mistakes, how so? ? This code is as follows : #include<pthread.h>; Pthread_rwlock_t lock; Int main (void) { ........ } Compiler of "warning : data definition has no type or storage class" mistakes, which is how the case ah? How to solve this problem? I use the RH9.0 Pthread_rwlock_t data type declarations mistakes, how so? ? #include "Sys/types.h>; Pthread_rwlock_t data type declarations mistakes, how so? ? Pthread_rwlock_t data type declarations mistakes, how so? ? You can add a compiler option -D__USE_UNIX98 try. Zhushidiao they do not. Pthread_rwlock_t data type declarations mistakes, how so? ? --> Thank you, Big Brother proposal lenovo I understand that you had a trial, or not : [code]gcc-C mc_daemon.c -I/usr/include/mysql -D__USE_UNIX98 Mc_daemon.c:19 : parse error before "rwstate" Mc_daemon.c:19 : warning : data definition has no type or storage class Make : *** 1 [mc_daemon.o] Error [/code] Pthread_rwlock_t data type declarations mistakes, how so? ? Did you missed pulling the brackets. I was at the wrong committed and Latin America Pthread_rwlock_t data type declarations mistakes, how so? ? Pthread_rwlock_t data type declarations mistakes, how so? ? Try to compile like this : gcc -o test test.c -D_XOPEN_SOURCE=500 -Wall. But not specified 't ask me why. I not specified 't know. Pthread_rwlock_t data type declarations mistakes, how so? ? Pthread_rwlock_t data type declarations mistakes, how so? ? This shows you rwstate issues have been resolved, but there are other errors that the compiler told you slowly change bars. Pthread_rwlock_t data type declarations mistakes, how so? ? But it "the same code" ah, but the translation, a used-D option, a useless, and received two different results. Pthread_rwlock_t data type declarations mistakes, how so? ? -D_XOPEN_SOURCE=500 Increase after editing gives you the above procedures have been no problem. For your own procedures, not code stickers out, I am afraid no one knew how to solve them. [ Closed window ]