math/cado-nfs: fix build on non-amd64

lingen_pz is installed only on amd64.

While here, rework endianness detection, since the current method uses plain
list of architectures. Since powerpc64le is little endian and POWER as whole
is set up in cado-endian.h as big-endian, it will result in runtime issues.

math/cado-nfs/Makefile

@@ -9,7 +9,6 @@ COMMENT= Implementation of the Number Field Sieve Algorithm
 LICENSE= LGPL21
 LICENSE_FILE= ${WRKSRC}/COPYING
 
-BROKEN_i386= pkg-static: Unable to access file /wrkdirs/usr/ports/math/cado-nfs/work/stage/usr/local/lib/cado-nfs-3.0.0/linalg/bwc/lingen_pz:No such file or directory
 CONFLICTS_BUILD= libfmt # bundled libfmt conflicts with package-installed headers
 
 BUILD_DEPENDS= ${PYTHON_PKGNAMEPREFIX}sqlite3>0:databases/py-sqlite3@${PY_FLAVOR} \
@@ -33,4 +32,12 @@ TEST_TARGET= check # 'test' does the same but is less verbose
 
 BINARY_ALIAS= python3=${PYTHON_CMD} make=${GMAKE}
 
+.include <bsd.port.options.mk>
+
+.if ${ARCH} == amd64
+PLIST_SUB= LINGEN_PZ=""
+.else
+PLIST_SUB= LINGEN_PZ="@comment "
+.endif
+
 .include <bsd.port.mk>

math/cado-nfs/files/patch-utils_cado-endian.h

@@ -0,0 +1,53 @@
+--- utils/cado-endian.h.orig 2021-09-16 01:25:08 UTC
++++ utils/cado-endian.h
+@@ -27,20 +27,16 @@
+
+ // pragma no prototypes
+
+-#ifdef HAVE_GLIBC
+-// GNU libc offers the helpful header <endian.h> which defines
+-// __BYTE_ORDER
+-# include <endian.h>
+-# if (__BYTE_ORDER == __LITTLE_ENDIAN)
++# if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
+ # define CADO_LITTLE_ENDIAN
+-# elif (__BYTE_ORDER == __BIG_ENDIAN)
++# elif (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
+ # define CADO_BIG_ENDIAN
+-# elif (__BYTE_ORDER == __PDP_ENDIAN)
++# elif (__BYTE_ORDER__ == __PDP_ENDIAN)
+ # define CADO_PDP_ENDIAN
+ # else
+ # error Unknown machine endianness detected.
+ # endif
+-# define CADO_BYTE_ORDER __BYTE_ORDER
++# define CADO_BYTE_ORDER __BYTE_ORDER__
+ /* There is no serious reason to think that _BIG_ENDIAN or _LITTLE_ENDIAN
+ * being defined actually means that the machine is big (resp, little)
+ * endian. Systems may like to unconditionally define these as constants
+@@ -54,25 +50,4 @@
+ # define CADO_LITTLE_ENDIAN
+ # define CADO_BYTE_ORDER 1234
+ */
+-#elif defined(__sparc) || defined(__sparc__) \
+- || defined(_POWER) || defined(__powerpc__) \
+- || defined(__ppc__) || defined(__hpux) \
+- || defined(_MIPSEB) || defined(_POWER) \
+- || defined(__AARCH64EB__) \
+- || defined(__s390__)
+-# define CADO_BIG_ENDIAN
+-# define CADO_BYTE_ORDER 4321
+-#elif defined(__i386__) || defined(__alpha__) \
+- || defined(__ia64) || defined(__ia64__) \
+- || defined(_M_IX86) || defined(_M_IA64) \
+- || defined(_M_ALPHA) || defined(__amd64) \
+- || defined(__amd64__) || defined(_M_AMD64) \
+- || defined(__x86_64) || defined(__x86_64__) \
+- || defined(__AARCH64EL__) \
+- || defined(_M_X64)
+-# define CADO_LITTLE_ENDIAN
+-# define CADO_BYTE_ORDER 1234
+-#else
+-# error The file cado-endian.h needs to be set up for your CPU type.
+-#endif
+ #endif

math/cado-nfs/pkg-plist

@@ -18,7 +18,7 @@ lib/cado-nfs-3.0.0/linalg/bwc/cleanup
 lib/cado-nfs-3.0.0/linalg/bwc/dispatch
 lib/cado-nfs-3.0.0/linalg/bwc/gather
 lib/cado-nfs-3.0.0/linalg/bwc/krylov
-lib/cado-nfs-3.0.0/linalg/bwc/lingen_pz
+%%LINGEN_PZ%%lib/cado-nfs-3.0.0/linalg/bwc/lingen_pz
 lib/cado-nfs-3.0.0/linalg/bwc/lingen_u64k1
 lib/cado-nfs-3.0.0/linalg/bwc/mf_bal
 lib/cado-nfs-3.0.0/linalg/bwc/mksol