When doing a 'make' or even running portupgrade an linker error is returned attempting
to link to /usr/local/bin/libexslt.a on exsltCryptoGcrypt methods even though
/usr/local/lib/libgcrypt.so is present and textproc/libxslt has been built with
WITH_GCRYPT=yes

Fix: 

Haven't found a fix yet.  Have tried rebuilding libxslt and xmlstarlet multiple times in
an attempt to ensure gcrypt is enabled, but to no avail.

The following is an 'ls' of libgcrypt.so on my system:

lrwxr-xr-x  1 root  wheel      15 Apr 22 08:56 /usr/local/lib/libgcrypt.so -> libgcrypt.so.13
-rwxr-xr-x  1 root  wheel  335953 Apr 22 08:56 /usr/local/lib/libgcrypt.so.13

The following is the output when trying to link.

cc  -O -pipe  -o xml  xml.o xml_edit.o xml_ls.o xml_escape.o xml_pyx.o  xml_depyx.o xml_select.o xml_trans.o xml_validate.o xml_format.o  xml_elem.o xml_C14N.o trans.o binsert.o stack.o strdup.o /usr/local/lib/libxslt.a /usr/local/lib/libexslt.a -lz -lm -pthread /usr/local/lib/libxml2.a -lz -lm -pthread -liconv -L/usr/local/lib
/usr/local/lib/libexslt.a(crypto.o)(.text+0x101): In function `exsltCryptoGcryptInit':
: undefined reference to `gcry_check_version'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x134): In function `exsltCryptoGcryptHash':
: undefined reference to `gcry_md_hash_buffer'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x159): In function `exsltCryptoGcryptRc4Encrypt':
: undefined reference to `gcry_cipher_open'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x169): In function `exsltCryptoGcryptRc4Encrypt':
: undefined reference to `gcry_strerror'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x19a): In function `exsltCryptoGcryptRc4Encrypt':
: undefined reference to `gcry_cipher_ctl'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x1aa): In function `exsltCryptoGcryptRc4Encrypt':
: undefined reference to `gcry_strerror'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x1df): In function `exsltCryptoGcryptRc4Encrypt':
: undefined reference to `gcry_cipher_encrypt'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x1ef): In function `exsltCryptoGcryptRc4Encrypt':
: undefined reference to `gcry_strerror'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x217): In function `exsltCryptoGcryptRc4Encrypt':
: undefined reference to `gcry_cipher_close'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x23d): In function `exsltCryptoGcryptRc4Decrypt':
: undefined reference to `gcry_cipher_open'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x24d): In function `exsltCryptoGcryptRc4Decrypt':
: undefined reference to `gcry_strerror'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x27e): In function `exsltCryptoGcryptRc4Decrypt':
: undefined reference to `gcry_cipher_ctl'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x28e): In function `exsltCryptoGcryptRc4Decrypt':
: undefined reference to `gcry_strerror'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x2c3): In function `exsltCryptoGcryptRc4Decrypt':
: undefined reference to `gcry_cipher_decrypt'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x2d3): In function `exsltCryptoGcryptRc4Decrypt':
: undefined reference to `gcry_strerror'
/usr/local/lib/libexslt.a(crypto.o)(.text+0x2fb): In function `exsltCryptoGcryptRc4Decrypt':
: undefined reference to `gcry_cipher_close'
*** Error code 1

Stop in /usr/ports/textproc/xmlstarlet/work/xmlstarlet-1.0.1/src.
*** Error code 1

Stop in /usr/ports/textproc/xmlstarlet/work/xmlstarlet-1.0.1.
*** Error code 1

Stop in /usr/ports/textproc/xmlstarlet/work/xmlstarlet-1.0.1.
*** Error code 1
How-To-Repeat: Update the ports tree from CVS and run 'make' on the port.