From 1f92847a634a9bc629dd18d3baa3eff5f1177a22 Mon Sep 17 00:00:00 2001
From: Vladimir Dubrovin <3proxy@3proxy.ru>
Date: Thu, 2 Apr 2026 13:47:27 +0300
Subject: [PATCH] Library checks compatible with different make versions (fix
 Ubuntu 18)

---
 Makefile.FreeBSD      | 6 +++---
 Makefile.Linux        | 6 +++---
 Makefile.openwrt-mips | 6 +++---
 Makefile.unix         | 6 +++---
 4 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/Makefile.FreeBSD b/Makefile.FreeBSD
index fc1ccc1..693d5f8 100644
--- a/Makefile.FreeBSD
+++ b/Makefile.FreeBSD
@@ -30,16 +30,16 @@ TYPECOMMAND = cat
 COMPATLIBS =
 MAKEFILE = Makefile.FreeBSD
 PLUGINS ?= StringsPlugin TrafficPlugin TransparentPlugin
-OPENSSL_CHECK = $(shell echo "\#include <openssl/ssl.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l crypto -l ssl -o testssl - 2>/dev/null && rm testssl && echo true||echo false)
+OPENSSL_CHECK = $(shell echo "\#include <openssl/ssl.h>\\n int main(){return 0;}" | tr -d \\\\ | cc -x c $(CFLAGS) $(LDFLAGS) -l crypto -l ssl -o testssl - 2>/dev/null && rm testssl && echo true||echo false)
 ifeq ($(OPENSSL_CHECK), true)
     LIBS += -l crypto -l ssl
     PLUGINS += SSLPlugin
 endif
-PAM_CHECK = $(shell echo "\#include <security/pam_appl.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l pam -o testpam - 2>/dev/null && rm testpam && echo true||echo false)
+PAM_CHECK = $(shell echo "\#include <security/pam_appl.h>\\n int main(){return 0;}" | tr -d \\\\ | cc -x c $(CFLAGS) $(LDFLAGS) -l pam -o testpam - 2>/dev/null && rm testpam && echo true||echo false)
 ifeq ($(PAM_CHECK), true)
     PLUGINS += PamAuth
 endif
-PCRE_CHECK = $(shell echo "\#include <pcre.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l pcre -o testpcre - 2>/dev/null && rm testpcre && echo true||echo false)
+PCRE_CHECK = $(shell echo "\#include <pcre.h>\\n int main(){return 0;}" | tr -d \\\\ | cc -x c $(CFLAGS) $(LDFLAGS) -l pcre -o testpcre - 2>/dev/null && rm testpcre && echo true||echo false)
 ifeq ($(PCRE_CHECK), true)
     PLUGINS += PCREPlugin
 endif
diff --git a/Makefile.Linux b/Makefile.Linux
index 42f339b..db63281 100644
--- a/Makefile.Linux
+++ b/Makefile.Linux
@@ -36,16 +36,16 @@ MAKEFILE = Makefile.Linux
 LIBS ?= -ldl 
 #PLUGINS = SSLPlugin StringsPlugin TrafficPlugin PCREPlugin TransparentPlugin PamAuth
 PLUGINS ?= StringsPlugin TrafficPlugin TransparentPlugin
-OPENSSL_CHECK = $(shell echo "#include <openssl/ssl.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l crypto -l ssl -o testssl - 2>/dev/null && rm testssl && echo true||echo false)
+OPENSSL_CHECK = $(shell echo "\#include <openssl/ssl.h>\\n int main(){return 0;}" | tr -d \\\\ | cc -x c $(CFLAGS) $(LDFLAGS) -l crypto -l ssl -o testssl - 2>/dev/null && rm testssl && echo true||echo false)
 ifeq ($(OPENSSL_CHECK), true)
     LIBS += -l crypto -l ssl
     PLUGINS += SSLPlugin
 endif
-PCRE_CHECK = $(shell echo "#include <pcre.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l pcre -o testpcre - 2>/dev/null && rm testpcre && echo true||echo false)
+PCRE_CHECK = $(shell echo "\#include <pcre.h>\\n int main(){return 0;}" | tr -d \\\\ | cc -x c $(CFLAGS) $(LDFLAGS) -l pcre -o testpcre - 2>/dev/null && rm testpcre && echo true||echo false)
 ifeq ($(PCRE_CHECK), true)
     PLUGINS += PCREPlugin
 endif
-PAM_CHECK = $(shell echo "#include <security/pam_appl.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l pam -o testpam - 2>/dev/null && rm testpam && echo true||echo false)
+PAM_CHECK = $(shell echo "\#include <security/pam_appl.h>\\n int main(){return 0;}" | tr -d \\\\ | cc -x c $(CFLAGS) $(LDFLAGS) -l pam -o testpam - 2>/dev/null && rm testpam && echo true||echo false)
 ifeq ($(PAM_CHECK), true)
     PLUGINS += PamAuth
 endif
diff --git a/Makefile.openwrt-mips b/Makefile.openwrt-mips
index 3d79f4b..6ea07f5 100644
--- a/Makefile.openwrt-mips
+++ b/Makefile.openwrt-mips
@@ -36,16 +36,16 @@ MAKEFILE = Makefile.openwrt-mips
 LIBS ?= -ldl 
 #PLUGINS = SSLPlugin StringsPlugin TrafficPlugin PCREPlugin TransparentPlugin PamAuth
 PLUGINS ?= StringsPlugin TrafficPlugin TransparentPlugin
-OPENSSL_CHECK = $(shell echo "#include <openssl/ssl.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l crypto -l ssl -o testssl - 2>/dev/null && rm testssl && echo true||echo false)
+OPENSSL_CHECK = $(shell echo "\#include <openssl/ssl.h>\\n int main(){return 0;}" | tr -d \\\\ | cc -x c $(CFLAGS) $(LDFLAGS) -l crypto -l ssl -o testssl - 2>/dev/null && rm testssl && echo true||echo false)
 ifeq ($(OPENSSL_CHECK), true)
     LIBS += -l crypto -l ssl
     PLUGINS += SSLPlugin
 endif
-PCRE_CHECK = $(shell echo "#include <pcre.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l pcre -o testpcre - 2>/dev/null && rm testpcre && echo true||echo false)
+PCRE_CHECK = $(shell echo "\#include <pcre.h>\\n int main(){return 0;}" | tr -d \\\\ | cc -x c $(CFLAGS) $(LDFLAGS) -l pcre -o testpcre - 2>/dev/null && rm testpcre && echo true||echo false)
 ifeq ($(PCRE_CHECK), true)
     PLUGINS += PCREPlugin
 endif
-PAM_CHECK = $(shell echo "#include <security/pam_appl.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l pam -o testpam - 2>/dev/null && rm testpam && echo true||echo false)
+PAM_CHECK = $(shell echo "\#include <security/pam_appl.h>\\n int main(){return 0;}" | tr -d \\\\ | cc -x c $(CFLAGS) $(LDFLAGS) -l pam -o testpam - 2>/dev/null && rm testpam && echo true||echo false)
 ifeq ($(PAM_CHECK), true)
     PLUGINS += PamAuth
 endif
diff --git a/Makefile.unix b/Makefile.unix
index 4db7e11..c8151cc 100644
--- a/Makefile.unix
+++ b/Makefile.unix
@@ -34,16 +34,16 @@ TYPECOMMAND = cat
 COMPATLIBS =
 MAKEFILE = Makefile.unix
 PLUGINS ?= StringsPlugin TrafficPlugin TransparentPlugin
-OPENSSL_CHECK = $(shell echo "\#include <openssl/ssl.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l crypto -l ssl -o testssl - 2>/dev/null && rm testssl && echo true||echo false)
+OPENSSL_CHECK = $(shell echo "\#include <openssl/ssl.h>\\n int main(){return 0;}" | tr -d \\\\ | cc -x c $(CFLAGS) $(LDFLAGS) -l crypto -l ssl -o testssl - 2>/dev/null && rm testssl && echo true||echo false)
 ifeq ($(OPENSSL_CHECK), true)
     LIBS += -l crypto -l ssl
     PLUGINS += SSLPlugin
 endif
-PAM_CHECK = $(shell echo "\#include <security/pam_appl.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l pam -o testpam - 2>/dev/null && rm testpam && echo true||echo false)
+PAM_CHECK = $(shell echo "\#include <security/pam_appl.h>\\n int main(){return 0;}" | tr -d \\\\ | cc -x c $(CFLAGS) $(LDFLAGS) -l pam -o testpam - 2>/dev/null && rm testpam && echo true||echo false)
 ifeq ($(PAM_CHECK), true)
     PLUGINS += PamAuth
 endif
-PCRE_CHECK = $(shell echo "\#include <pcre.h>\\n int main(){return 0;}" | cc -x c $(CFLAGS) $(LDFLAGS) -l pcre -o testpcre - 2>/dev/null && rm testpcre && echo true||echo false)
+PCRE_CHECK = $(shell echo "\#include <pcre.h>\\n int main(){return 0;}" | tr -d \\\\ | cc -x c $(CFLAGS) $(LDFLAGS) -l pcre -o testpcre - 2>/dev/null && rm testpcre && echo true||echo false)
 ifeq ($(PCRE_CHECK), true)
     PLUGINS += PCREPlugin
 endif