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postfix-3.5.9-9.el9 fails to rebuild with this compiler error:
gcc -I. -I../../include -fPIC -fcommon -DHAS_LDAP -DLDAP_DEPRECATED=1 -DUSE_LDAP_SASL -DHAS_LMDB -DHAS_PCRE -I/usr/include/pcre -DHAS_MYSQL -I/usr/include/mysql -DHAS_PGSQL -I/usr/include/pgsql -DHAS_SQLITE -DHAS_CDB -DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/include/sasl -DUSE_TLS -DDEF_CONFIG_DIR=\"/etc/postfix\" -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DNO_NIS -DHAS_DEV_URANDOM -DUSE_DYNAMIC_LIBS -DUSE_DYNAMIC_MAPS -Wmissing-prototypes -Wformat -Wno-comment -fcommon -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m32 -march=i686 -mtune=generic -msse2 -mfpmath=sse -mstackrealign -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -fno-strict-aliasing -Wno-comment -I. -DLINUX4 -c attr_print0.c
In file included from attr_clnt.c:88:
/usr/include/unistd.h:363:13: error: conflicting types for 'closefrom'; have 'void(int)'
363 | extern void closefrom (int __lowfd) __THROW;
| ^~~~~~~~~
In file included from attr_clnt.c:87:
./sys_defs.h:1512:12: note: previous declaration of 'closefrom' with type 'int(int)'
1512 | extern int closefrom(int);
| ^~~~~~~~~
closefrom is a new function in glibc 2.34. It follows the Solaris precedent, so it returns void (not int). At the minimum, Postfix needs to adjust its return type. The only caller of the function does not use the returned value anyway.
Comment 1Jaroslav Škarvada
2021-08-02 22:08:44 UTC
postfix-3.5.9-9.el9 fails to rebuild with this compiler error: gcc -I. -I../../include -fPIC -fcommon -DHAS_LDAP -DLDAP_DEPRECATED=1 -DUSE_LDAP_SASL -DHAS_LMDB -DHAS_PCRE -I/usr/include/pcre -DHAS_MYSQL -I/usr/include/mysql -DHAS_PGSQL -I/usr/include/pgsql -DHAS_SQLITE -DHAS_CDB -DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I/usr/include/sasl -DUSE_TLS -DDEF_CONFIG_DIR=\"/etc/postfix\" -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DNO_NIS -DHAS_DEV_URANDOM -DUSE_DYNAMIC_LIBS -DUSE_DYNAMIC_MAPS -Wmissing-prototypes -Wformat -Wno-comment -fcommon -fPIC -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m32 -march=i686 -mtune=generic -msse2 -mfpmath=sse -mstackrealign -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -fno-strict-aliasing -Wno-comment -I. -DLINUX4 -c attr_print0.c In file included from attr_clnt.c:88: /usr/include/unistd.h:363:13: error: conflicting types for 'closefrom'; have 'void(int)' 363 | extern void closefrom (int __lowfd) __THROW; | ^~~~~~~~~ In file included from attr_clnt.c:87: ./sys_defs.h:1512:12: note: previous declaration of 'closefrom' with type 'int(int)' 1512 | extern int closefrom(int); | ^~~~~~~~~ closefrom is a new function in glibc 2.34. It follows the Solaris precedent, so it returns void (not int). At the minimum, Postfix needs to adjust its return type. The only caller of the function does not use the returned value anyway.