configure.in

#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_PREREQ([2.69])
AC_INIT([envelope], [v1.0.0], [joseph@envelope.xyz])
AC_CONFIG_SRCDIR([src])

# Checks for programs.
AC_PROG_CC
AC_CHECK_PROG([pg_config_found], [pg_config], [yes], [no])
if test "x${pg_config_found}" = xno; then
    AC_MSG_ERROR([pg_config not found; please install PostgreSQL devel package or equivalent])
fi

# Checks for libraries.
LIBS="$LIBS -lpq -lcrypto -lssl"
LDFLAGS="$LDFLAGS -L$(pg_config --libdir)"
AC_CHECK_LIB([pq], [PQescapeLiteral], , AC_MSG_ERROR([no usable libpq; please install PostgreSQL devel package or equivalent]))

# Checks for header files.
CPPFLAGS="$CPPFLAGS -I$(pg_config --includedir)"
AC_CHECK_HEADERS([libpq-fe.h], , AC_MSG_ERROR([no usable libpq; please install PostgreSQL devel package or equivalent]))
AC_CHECK_HEADERS([arpa/inet.h fcntl.h limits.h netdb.h netinet/in.h stddef.h stdlib.h string.h sys/socket.h syslog.h unistd.h], , AC_MSG_ERROR([INSANE BUILD ENVIRONMENT DETECTED; CANNOT CONTINUE]))

# Checks for typedefs, structures, and compiler characteristics.
AC_CHECK_HEADER_STDBOOL
AC_C_INLINE
AC_TYPE_PID_T
AC_TYPE_SIZE_T

# Checks for library functions.
AC_FUNC_CHOWN
AC_FUNC_ERROR_AT_LINE
AC_FUNC_FORK
AC_FUNC_MALLOC
AC_FUNC_MKTIME
AC_FUNC_REALLOC
AC_CHECK_FUNCS([bzero dup2 inet_ntoa memset mkdir realpath regcomp rmdir setenv socket strchr strcspn strerror strncasecmp strrchr strstr strtol])

AC_CONFIG_FILES([Makefile])
AC_OUTPUT