Link against libm

Fixes compilation of libproxy against duktape.

https://github.com/svaarala/duktape/issues/2464

duktape-2.7.0-link-against-libm.patch

@@ -0,0 +1,28 @@
+From d898ad3920cb08d6918d11d9678bae28393a82d1 Mon Sep 17 00:00:00 2001
+From: tinywrkb <tinywrkb@gmail.com>
+Date: Thu, 17 Mar 2022 03:55:51 +0200
+Subject: [PATCH] dist-files/Makefile.sharedlibrary: link against libm
+
+Closes #2464.
+---
+ Makefile.sharedlibrary | 4 ++--
+ 2 files changed, 3 insertions(+), 2 deletions(-)
+
+diff --git a/Makefile.sharedlibrary b/Makefile.sharedlibrary
+index 3a6c7cacc..4e20084e3 100644
+--- a/Makefile.sharedlibrary
++++ b/Makefile.sharedlibrary
+@@ -71,11 +71,11 @@ all: libduktape.$(SO_REALNAME_SUFFIX) libduktaped.$(SO_REALNAME_SUFFIX) duktape.
+ 
+ libduktape.$(SO_REALNAME_SUFFIX):
+ 	$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -shared -fPIC -Wall -Wextra -Os -Wl,$(LD_SONAME_ARG),libduktape.$(SO_SONAME_SUFFIX) \
+-		-o $@ $(DUKTAPE_SRCDIR)/duktape.c
++		-o $@ $(DUKTAPE_SRCDIR)/duktape.c -lm
+ 
+ libduktaped.$(SO_REALNAME_SUFFIX):
+ 	$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -shared -fPIC -g -Wall -Wextra -Os -Wl,$(LD_SONAME_ARG),libduktaped.$(SO_SONAME_SUFFIX) \
+-		-o $@ $(DUKTAPE_SRCDIR)/duktape.c
++		-o $@ $(DUKTAPE_SRCDIR)/duktape.c -lm
+ 
+ duktape.pc:
+ 	sed -e "s|@PREFIX@|$(INSTALL_PREFIX)|" \

duktape.spec

@@ -2,9 +2,12 @@ Name:           duktape
 Version:        2.7.0
 Release:        %autorelease
 Summary:        Embeddable Javascript engine
+
 License:        MIT
 Url:            http://duktape.org/
 Source0:        http://duktape.org/%{name}-%{version}.tar.xz
+Patch0:         duktape-2.7.0-link-against-libm.patch
+
 BuildRequires:  gcc
 BuildRequires:  pkgconfig
 BuildRequires:  make
@@ -24,7 +27,7 @@ This package contains header files and libraries needed to develop
 application that use %{name}.
 
 %prep
-%setup -q
+%autosetup -p1
 
 %build
 %make_build -f Makefile.sharedlibrary INSTALL_PREFIX=%{_prefix} LIBDIR=/%{_lib}