.if ${PORT_OPTIONS:MLLVM}

.if ${PORT_OPTIONS:MLLVM} && defined(SERVER_ONLY) && ${DISTVERSION:C/([0-9]*).*/\1/} >= 11

CONFIGURE_ARGS+=	--with-llvm

BUILD_DEPENDS+=		llvm${PG_LLVM_VERSION}>0:devel/llvm${PG_LLVM_VERSION}

# - Use default LLVM.

BUILD_DEPENDS+=		llvm-config${PG_LLVM_VERSION}:devel/llvm${PG_LLVM_VERSION}

# - Use a version lower or equal to MAX_ALLOWED_MAJOR (compatibility).

RUN_DEPENDS+=		llvm-config${PG_LLVM_VERSION}:devel/llvm${PG_LLVM_VERSION}

MAX_ALLOWED_MAJOR:=11 # LLVM versions < 10 not supported in this var

CONFIGURE_ENV+=		LLVM_CONFIG=${LOCALBASE}/bin/llvm-config${PG_LLVM_VERSION}

.if ${LLVM_DEFAULT} < 60

LLVM_DEFAULT_MAJOR:=${LLVM_DEFAULT}

.else

LLVM_DEFAULT_MAJOR:=${LLVM_DEFAULT:C/^([0-9]).*/\1/}

# sync LLVM to the preferred compiler if possible

.if ${LLVM_DEFAULT_MAJOR} > ${MAX_ALLOWED_MAJOR}

# or else use a lower version compiler that is compatible

CHOSEN_MAJOR:=${MAX_ALLOWED_MAJOR}

.if ${COMPILER_VERSION} > ${LLVM_DEFAULT}

# Highest LLVM version in ports:

.  if ${COMPILER_VERSION} <= 11

PG_LLVM_VERSION=${COMPILER_VERSION}

PG_COMPILER_VERSION=${COMPILER_VERSION}

.  else

PG_LLVM_VERSION=11

PG_COMPILER_VERSION=11

.  endif

PG_COMPILER_VERSION=${COMPILER_VERSION}

CHOSEN_MAJOR:=${LLVM_DEFAULT_MAJOR}

PG_LLVM_VERSION=${LLVM_DEFAULT}

.if ${DISTVERSION:C/([0-9]*).*/\1/} >= 11

.if ${CHOSEN_MAJOR} == ${LLVM_DEFAULT_MAJOR}

.  if defined(SERVER_ONLY) && ${PORT_OPTIONS:MLLVM}

PG_LLVM_VERSION?=${LLVM_DEFAULT}

INSTALL_DIRS+=		src/backend/jit/llvm

.else

.    if ${COMPILER_VERSION} != ${PG_COMPILER_VERSION}

# Forcing from max allowed version

LLVM_CONFIGURE_ARGS?=	CC=${LOCALBASE}/bin/clang${PG_COMPILER_VERSION}

PG_LLVM_VERSION?==${MAX_ALLOWED_MAJOR}

.    endif

.  endif