From d417b2806c88cf06f4f3baa0064d6b1f9f22037d Mon Sep 17 00:00:00 2001
From: Mounir IDRASSI <mounir.idrassi@idrix.fr>
Date: Sun, 13 Feb 2022 18:41:18 +0100
Subject: Linux/FreeBSD: Enable building without AESNI support by setting
 environment variable DISABLE_AESNI to 1 during build or passing NOAESNI=1 to
 make command

This comes following Github issue #892 and which should be solved thanks to this.
---
 src/Makefile | 31 ++++++++++++++++++++++++-------
 1 file changed, 24 insertions(+), 7 deletions(-)

(limited to 'src/Makefile')

diff --git a/src/Makefile b/src/Makefile
index eb87e6ea..05ea3f61 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -143,6 +143,7 @@ export PLATFORM_UNSUPPORTED := 0
 
 export CPU_ARCH ?= unknown
 export SIMD_SUPPORTED := 0
+export DISABLE_AESNI ?= 0
 
 ARCH ?= $(shell uname -m)
 
@@ -176,6 +177,9 @@ ifeq "$(origin NOSSE2)" "command line"
 	SIMD_SUPPORTED := 0
 endif
 
+ifeq "$(origin NOAESNI)" "command line"
+	DISABLE_AESNI := 1
+endif
 
 #------ Linux configuration ------
 
@@ -197,11 +201,16 @@ ifeq "$(shell uname -s)" "Linux"
 		CFLAGS += -msse2
 		CXXFLAGS += -msse2
 
-		GCC_GTEQ_440 := $(shell expr `$(CC) -dumpversion | sed -e 's/\.\([0-9][0-9]\)/\1/g' -e 's/\.\([0-9]\)/0\1/g' -e 's/^[0-9]\{3,4\}$$/&00/' -e 's/^[0-9]\{1,2\}$$/&0000/'` \>= 40400)
-		GCC_GTEQ_430 := $(shell expr `$(CC) -dumpversion | sed -e 's/\.\([0-9][0-9]\)/\1/g' -e 's/\.\([0-9]\)/0\1/g' -e 's/^[0-9]\{3,4\}$$/&00/' -e 's/^[0-9]\{1,2\}$$/&0000/'` \>= 40300)
-		ifeq "$(GCC_GTEQ_440)" "1"
-			CFLAGS += -maes
-			CXXFLAGS += -maes
+		ifeq "$(DISABLE_AESNI)" "1"
+			CFLAGS += -mno-aes -DCRYPTOPP_DISABLE_AESNI
+			CXXFLAGS += -mno-aes -DCRYPTOPP_DISABLE_AESNI
+		else
+			GCC_GTEQ_440 := $(shell expr `$(CC) -dumpversion | sed -e 's/\.\([0-9][0-9]\)/\1/g' -e 's/\.\([0-9]\)/0\1/g' -e 's/^[0-9]\{3,4\}$$/&00/' -e 's/^[0-9]\{1,2\}$$/&0000/'` \>= 40400)
+			GCC_GTEQ_430 := $(shell expr `$(CC) -dumpversion | sed -e 's/\.\([0-9][0-9]\)/\1/g' -e 's/\.\([0-9]\)/0\1/g' -e 's/^[0-9]\{3,4\}$$/&00/' -e 's/^[0-9]\{1,2\}$$/&0000/'` \>= 40300)
+			ifeq "$(GCC_GTEQ_440)" "1"
+				CFLAGS += -maes
+				CXXFLAGS += -maes
+			endif
 		endif
 
 		ifeq "$(GCC_GTEQ_430)" "1"
@@ -365,8 +374,16 @@ ifeq "$(shell uname -s)" "FreeBSD"
 	endif
 
 	ifeq "$(SIMD_SUPPORTED)" "1"
-		CFLAGS += -msse2 -maes
-		CXXFLAGS += -msse2 -maes
+		CFLAGS += -msse2
+		CXXFLAGS += -msse2
+		
+		ifeq "$(DISABLE_AESNI)" "1"
+			CFLAGS += -mno-aes -DCRYPTOPP_DISABLE_AESNI
+			CXXFLAGS += -mno-aes -DCRYPTOPP_DISABLE_AESNI
+		else
+			CFLAGS += -maes
+			CXXFLAGS += -maes
+		endif
 
 		ifeq "$(origin SSSE3)" "command line"
 			CFLAGS += -mssse3
-- 
cgit v1.2.3