wcalc: new recipe

Builds out of the box, and it's a very useful tool.

sci-calculators/wcalc/wcalc-2.5.recipe

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+SUMMARY="Flexible command-line scientific calculator"
+DESCRIPTION="Wcalc is a very capable calculator.
+
+It supports abitrary precision, has standard functions (sin, asin, and sinh \
+for example, in either radians or degrees), many pre-defined constants \
+(pi, e, c, etc.), support for using variables, \"active\" variables, a \
+command history, hex/octal/binary input and output, unit conversions, \
+embedded comments, and an expandable expression entry field. It evaluates \
+expressions using the standard order of operations.
+
+Wcalc uses intuitive expressions and implicit multiplication. For example, \
+Wcalc will evaluate: 5sin 4!-7*2(4%6)^2 to be -221.96631678. Wcalc will also \
+understand basic UTF-8 entities, and so will evaluate √7×2÷π−ε0×σ+α+γ+R∞×Mτ-Φ0\
+to be 2.26885."
+HOMEPAGE="http://w-calc.sourceforge.net/"
+COPYRIGHT="2002-2015 Kyle Wheeler"
+LICENSE="GNU GPL v2"
+REVISION="1"
+SOURCE_URI="https://downloads.sourceforge.net/w-calc/wcalc-$portVersion.tar.bz2"
+CHECKSUM_SHA256="0e2c17c20f935328dcdc6cb4c06250a6732f9ee78adf7a55c01133960d6d28ee"
+
+ARCHITECTURES="!x86_gcc2 ?x86 ?x86_64"
+SECONDARY_ARCHITECTURES="x86"
+
+PROVIDES="
+	wcalc$secondaryArchSuffix = $portVersion
+	cmd:wcalc = $portVersion
+	"
+REQUIRES="
+	haiku$secondaryArchSuffix
+	lib:libgmp$secondaryArchSuffix
+	lib:libmpfr$secondaryArchSuffix
+	"
+
+BUILD_REQUIRES="
+	haiku${secondaryArchSuffix}_devel
+	devel:libmpfr$secondaryArchSuffix
+	"
+BUILD_PREREQUIRES="
+	cmd:awk
+	cmd:make
+	cmd:gcc$secondaryArchSuffix
+	"
+
+BUILD()
+{
+	runConfigure --omit-dirs binDir ./configure --bindir=$prefix/bin
+	make $jobArgs
+}
+
+INSTALL()
+{
+	make install
+}
+
+TEST()
+{
+	make check
+}