Hello! On x86_64 RHEL 7.7 with GCC 4.8.5, configuring and compiling skalibs 2.9.1.0 with
---- $ ./configure --disable-static $ make ---- results in a clean compile except for the following two warnings: ---- exec gcc -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700 -Isrc/include -fPIC -Werror=implicit-function-declaration -Werror=implicit-int -Werror=pointer-sign -Werror=pointer-arith -Wno-unused-value -Wno-parentheses -pipe -Wall -std=c99 -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables -Wa,--noexecstack -ffunction-sections -fdata-sections -O2 -fomit-frame-pointer -fno-stack-protector -c -o src/libunixonacid/textclient_server_init_fromsocket.lo src/libunixonacid/textclient_server_init_fromsocket.c src/libunixonacid/textclient_server_init_fromsocket.c: In function ‘sendit’: src/libunixonacid/textclient_server_init_fromsocket.c:56:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] *(int *)CMSG_DATA(c) = fd[1] ; ^ exec gcc -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700 -Isrc/include -fPIC -Werror=implicit-function-declaration -Werror=implicit-int -Werror=pointer-sign -Werror=pointer-arith -Wno-unused-value -Wno-parentheses -pipe -Wall -std=c99 -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables -Wa,--noexecstack -ffunction-sections -fdata-sections -O2 -fomit-frame-pointer -fno-stack-protector -c -o src/libunixonacid/textclient_start.lo src/libunixonacid/textclient_start.c src/libunixonacid/textclient_start.c: In function ‘get’: src/libunixonacid/textclient_start.c:77:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] fd[1] = *(int *)CMSG_DATA(c) ; ^ ---- On RHEL 7, according to the cmsg(3) man page, CMSG_DATA has a return type of "unsigned char *". Thank you, Lewis
