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<br clear="all"><div class="SECT1">
<h1 class="SECT1"><a name="XMLSEC-NOTES-COMPILING-UNIX">Compiling and linking on Unix.</a></h1>
<p>There are several ways to get necessary compilation
and linking information on Unix and application can use
any of these methods to do crypto engine selection either
at linking or run time.
</p>
<p></p>
<ul>
<li>
<p>PKG_CHECK_MODULES() macro
</p>
<div class="EXAMPLE">
<a name="AEN70"></a><p><b>Example 2. Using PKG_CHECK_MODULES() macro in a configure.in file
to select crypto engine (openssl) at linking time.</b></p>
<pre class="PROGRAMLISTING">dnl
dnl Check for xmlsec and friends
dnl
PKG_CHECK_MODULES(XMLSEC, xmlsec1-openssl >= 1.0.0 xml2 libxslt,,exit)
CFLAGS="$CFLAGS $XMLSEC_CFLAGS"
CPPFLAGS="$CPPFLAGS $XMLSEC_CFLAGS"
LDFLAGS="$LDFLAGS $XMLSEC_LIBS"
</pre>
</div>
<div class="EXAMPLE">
<a name="AEN73"></a><p><b>Example 3. Using PKG_CHECK_MODULES() macro in a configure.in file
to enable dynamical loading of xmlsec-crypto library.</b></p>
<pre class="PROGRAMLISTING">dnl
dnl Check for xmlsec and friends
dnl
PKG_CHECK_MODULES(XMLSEC, xmlsec1 >= 1.0.0 xml2 libxslt,,exit)
CFLAGS="$CFLAGS $XMLSEC_CFLAGS"
CPPFLAGS="$CPPFLAGS $XMLSEC_CFLAGS"
LDFLAGS="$LDFLAGS $XMLSEC_LIBS"
</pre>
</div>
</li>
<li>
<p>pkg-config script
</p>
<div class="EXAMPLE">
<a name="AEN78"></a><p><b>Example 4. Using pkg-config script in a Makefile
to select crypto engine (nss) at linking time.</b></p>
<pre class="PROGRAMLISTING">PROGRAM = test
PROGRAM_FILES = test.c
CFLAGS += -g $(shell pkg-config --cflags xmlsec1-nss)
LDFLAGS += -g
LIBS += $(shell pkg-config --libs xmlsec1-nss)
all: $(PROGRAM)
%: %.c
$(cc) $(PROGRAM_FILES) $(CFLAGS) $(LDFLAGS) -o $(PROGRAM) $(LIBS)
clean:
@rm -rf $(PROGRAM)
</pre>
</div>
<div class="EXAMPLE">
<a name="AEN81"></a><p><b>Example 5. Using pkg-config script in a Makefile
to enable dynamical loading of xmlsec-crypto library.</b></p>
<pre class="PROGRAMLISTING">PROGRAM = test
PROGRAM_FILES = test.c
CFLAGS += -g $(shell pkg-config --cflags xmlsec1)
LDFLAGS += -g
LIBS += $(shell pkg-config --libs xmlsec1)
all: $(PROGRAM)
%: %.c
$(cc) $(PROGRAM_FILES) $(CFLAGS) $(LDFLAGS) -o $(PROGRAM) $(LIBS)
clean:
@rm -rf $(PROGRAM)
</pre>
</div>
</li>
<li>
<p>xmlsec1-config script
</p>
<div class="EXAMPLE">
<a name="AEN86"></a><p><b>Example 6. Using xmlsec1-config script in a Makefile
to select crypto engine (e.g. gnutls) at linking time.</b></p>
<pre class="PROGRAMLISTING">PROGRAM = test
PROGRAM_FILES = test.c
CFLAGS += -g $(shell xmlsec1-config --crypto gnutls --cflags)
LDFLAGS += -g
LIBS += $(shell xmlsec1-config --crypto gnutls --libs)
all: $(PROGRAM)
%: %.c
$(cc) $(PROGRAM_FILES) $(CFLAGS) $(LDFLAGS) -o $(PROGRAM) $(LIBS)
clean:
@rm -rf $(PROGRAM)
</pre>
</div>
<div class="EXAMPLE">
<a name="AEN89"></a><p><b>Example 7. Using xmlsec1-config script in a Makefile
to enable dynamical loading of xmlsec-crypto library.</b></p>
<pre class="PROGRAMLISTING">PROGRAM = test
PROGRAM_FILES = test.c
CFLAGS += -g $(shell xmlsec1-config --cflags)
LDFLAGS += -g
LIBS += $(shell xmlsec1-config --libs)
all: $(PROGRAM)
%: %.c
$(cc) $(PROGRAM_FILES) $(CFLAGS) $(LDFLAGS) -o $(PROGRAM) $(LIBS)
clean:
@rm -rf $(PROGRAM)
</pre>
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