[Buildroot] [PATCH v4] package/lapack: new package

[Samuel Martin]

From: Benjamin Kamath <kamath.ben at gmail.com>

lapack is a fortran-based linear algebra math library.

Signed-off-by: Benjamin Kamath <bkamath at spaceflight.com>
[Samuel:
 - Update to use BR2_TOOLCHAIN_HAS_FORTRAN symbol + add comment
   when the toolchain does not meet the requirements.
 - Update powerpc/uclibc dependencies to allow build with musl.
 - Bump to 3.6.1.]
Signed-off-by: Samuel Martin <s.martin49 at gmail.com>

---
changes v1->v2:
- integrate this patch in this series
- slightly tweak the commit log
- s/BR2_INSTALL_LIBFORTRAN/BR2_TOOLCHAIN_HAS_FORTRAN/

changes v2->v3:
- change the powerpc/uclibc dependency to allow build with musl (ThomasP)
- add comment when the toolchain does not have fortran support (ThomasP)
- fix license (ThomasP)
- fix case in config options (ThomasP)

changes v3->v4:
- bump to version 3.6.1 and remove no longer needed patch
---
 package/Config.in          |  1 +
 package/lapack/Config.in   | 20 ++++++++++++++++++++
 package/lapack/lapack.hash |  2 ++
 package/lapack/lapack.mk   | 25 +++++++++++++++++++++++++
 4 files changed, 48 insertions(+)
 create mode 100644 package/lapack/Config.in
 create mode 100644 package/lapack/lapack.hash
 create mode 100644 package/lapack/lapack.mk

diff --git a/package/Config.in b/package/Config.in
index 15271a2..91f9d30 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -1246,6 +1246,7 @@ menu "Other"
 	source "package/gsl/Config.in"
 	source "package/gtest/Config.in"
 	source "package/jemalloc/Config.in"
+	source "package/lapack/Config.in"
 	source "package/libargtable2/Config.in"
 	source "package/libatomic_ops/Config.in"
 	source "package/libbsd/Config.in"
diff --git a/package/lapack/Config.in b/package/lapack/Config.in
new file mode 100644
index 0000000..73b55c5
--- /dev/null
+++ b/package/lapack/Config.in
@@ -0,0 +1,20 @@
+comment "lapack/blas needs a toolchain w/ fortran"
+	depends on !(BR2_powerpc && BR2_TOOLCHAIN_USES_UCLIBC)
+	depends on !BR2_TOOLCHAIN_HAS_FORTRAN
+
+config BR2_PACKAGE_LAPACK
+	bool "lapack/blas"
+	depends on BR2_TOOLCHAIN_HAS_FORTRAN
+	# _fpu_control is used on PowerPC, but not available with uClibc
+	depends on !(BR2_powerpc && BR2_TOOLCHAIN_USES_UCLIBC)
+	help
+	  LAPACK and BLAS FORTRAN implementation.
+
+	  http://www.netlib.org/lapack/
+
+config BR2_PACKAGE_LAPACK_COMPLEX
+	bool "Complex/Complex16 support"
+	depends on BR2_PACKAGE_LAPACK
+	default y
+	help
+	  Builds support for COMPLEX and COMPLEX16 data types.
diff --git a/package/lapack/lapack.hash b/package/lapack/lapack.hash
new file mode 100644
index 0000000..e57cebc
--- /dev/null
+++ b/package/lapack/lapack.hash
@@ -0,0 +1,2 @@
+# Locally computed:
+sha256  888a50d787a9d828074db581c80b2d22bdb91435a673b1bf6cd6eb51aa50d1de  lapack-3.6.1.tgz
diff --git a/package/lapack/lapack.mk b/package/lapack/lapack.mk
new file mode 100644
index 0000000..f8416ad
--- /dev/null
+++ b/package/lapack/lapack.mk
@@ -0,0 +1,25 @@
+################################################################################
+#
+# lapack
+#
+################################################################################
+
+# This package provides 2 libraries:
+# - libblas
+# - liblapack
+
+LAPACK_VERSION = 3.6.1
+LAPACK_SOURCE = lapack-$(LAPACK_VERSION).tgz
+LAPACK_LICENSE = BSD-3c
+LAPACK_LICENSE_FILES = LICENSE
+LAPACK_SITE = http://www.netlib.org/lapack
+LAPACK_INSTALL_STAGING = YES
+LAPACK_CONF_OPTS = -DLAPACKE=ON -DCBLAS=ON
+
+ifeq ($(BR2_PACKAGE_LAPACK_COMPLEX),y)
+LAPACK_CONF_OPTS += -DBUILD_COMPLEX=ON -DBUILD_COMPLEX16=ON
+else
+LAPACK_CONF_OPTS += -DBUILD_COMPLEX=OFF -DBUILD_COMPLEX16=OFF
+endif
+
+$(eval $(cmake-package))
-- 
2.9.0